The hormone can remain in your blood and urine for up to six weeks after a pregnancy ends. If it has, the chemical used to detect hCG may not work. But heres the thing: HCG can be present at low levels in the body even youre not pregnant and just because a test is positive for HCG doesnt mean that the pregnancy is going to progress normally. Taking any medication that contains hCG can cause a false-positive result. They are thought to be very common, but they typically go undetected if a pregnancy test isnt taken. Because hCG is the hormone tested by pregnancy test, taking the drug will yield a false positive result in both blood and urine. I wouldnt waste money on a blood test. Whether youre focused on moderation or full-on sobriety, these tips can help. ), 2. American Addiction Centers: Whats An Amphetamine? But you still have to pay attention since a mistake can lead to incorrect results. The pregnancy test is expired. The medication can cause a false-positive result if you take the test too soon after a missed period. The second most common reason Dr. Abdur-Rahman's patients get false positives is because the test is expired, he says. Rarely, certain medical conditions can cause a home pregnancy test to give a false positive. When used in the IVF or IUI setting, the LH component can also trigger a false positive result but for different reasons. What Is a Blood Pregnancy Test and How Does It Work? This line may represent an early pregnancy, or it may be an evaporation line. These include some anticonvulsants, anti-anxiety drugs, antihistamines, diuretics, chemotherapy medications, antipsychotics, drugs that You must wait up to 10 days after administration of fertility drugs, to take a pregnancy test. Hi Ladies - well this has been a strange 2ww for me. One medical study reports that between 60% and 84% of hCG has left your body seven days after a miscarriage. Rarely, certain medical conditions can cause a home pregnancy test to give a false positive. Available for Android and iOS devices. Sertraline (Zoloft) is prescribed for depression, panic attacks, obsessive-compulsive disorder, and more. Can You Be Pregnant and Still Get a Negative Pregnancy Test? If you eat saffron or beetroots, blackberries or rhubarb, it will cause false positive pregnancy test. Methadone Long story short, I tested today and got a BFN. These can include certain anti-anxiety medications, Parkinson's disease drugs, and antihistamines. (2014). Get weekly updates on baby and your body. Some drug screens may not be specific enough to tell apart sertraline and benzodiazepines. Alcohol and illicit drugs also dont affect pregnancy test results. Thats an important distinction. Here's what might be going on. Pregged.com's Feature Editor is a dedicated Mom of 3, pregnancy geek, giver of hugs and a great listener. Its probably an evaporation line if the line is completely colorless. (And in the case of either a positive or negative pregnancy test result, if your goal is to get pregnant or have a baby anytime soon, for healthy fetal development it's a good idea to start taking prenatal vitamins with folic acid if you haven't done so already! Medically reviewed by Sally Chao, MD. Call your healthcare provider. The popular pregnancy test brand First Response, for example, instructs users to wait three minutes after taking the test, then read it as soon as possible4. It is possible to get a positive result when youre not actually pregnant, which is called a false-positive. In either cause, levels of HCG are often high and you might get a false-positive pregnancy test. Cookies collect information about your preferences and your devices and are used to make the site work as you expect it to, to understand how you interact with the site, and to show advertisements that are targeted to your interests. This can cause either a false negative or a false positive. Its not that the test is wrongit was completely accurate at picking up the hormone [hCG]," Dr. Williams says. A poppy seed bagel, for example, might make you test positive for both of those opioids for up to a whole day after you eat it. What Medications Can Aect a Pregnancy Test Result? Its made with the leaves of the same plant that cocaine comes from. The good news is theyre rare. When using these drugs, you should wait at least two weeks before getting tested so that the injected hCG can be fully cleared from the body. And if you get a negative pregnancy test, know that a false negative is sometimes possible too. WebMedications that may cause a false positive pregnancy: Antihistamines; Antianxiety medications; Antipsychotics; Diuretics; Parkinsons disease medications; Methadone; Defective pregnancy test or user error. I found information online that backed my theory. But chances are very low that youll have enough THC to trigger the positive result in the screens used by the federal government and many private employers. That could lead to a positive pregnancy test when your body just hasnt cleared the hCG yet.. (2013). Other factors that can cause inaccurate results on pregnancy tests may include: How about stopping the antihistamines for a few days before you bother your doctor? Trying to figure out if you need to take a pregnancy test? False positives arent super common, Dr. Emery says. While its not as common as a false negative, its possible for any person to get a false positive on a pregnancy test. It takes around 7 to 14 days to clear the drug from your system after injection. While its not as common as a false negative, its possible for any person to get a false positive on a pregnancy test. A non-pregnant woman with elevated beta-HCG: A case of para-neoplastic syndrome in ovarian cancer. If youre trying to become pregnant under a doctors care, you may be taking fertility medications. Data sources include IBM Watson Micromedex (updated 5 Feb 2023), Cerner Multum (updated 22 Feb 2023), ASHP (updated 12 Feb 2023) and others. Some popular over-the-counter allergy and sleep meds like Benadryl and Advil PM have diphenhydramine. Even if you cant take time off, you can still take care of yourself. Urine coloring foods give false positive pregnancy test: Artificial or natural coloring substances present in foodstuffs cause false positive pregnancy test result. But an ectopic pregnancy is when a fertilized egg gets stuck en route to your uterus and grows somewhere else, usually in a fallopian tube. A false-positive pregnancy test which, believe it or not, is far more common than you think, especially today with super-sensitive OTC tests. Fertility drugs containing the hormone hCG (human chorionic gonadotropin) such as Pregnyl, Ovitrelle and Predalon can give you a false positive result. That might cause the test to look like it has a faint second linemaking it positivebut it really only has one. Perkins also has extensive experience working in home health with medically fragile pediatric patients. Fertility Plus recommends waiting 7 days after a 2,500 International Unit (IU) injection, 10 days after a 5,000 IU injection, and 14 days after a 10,000 IU injection to test. Management of nonpregnant women with elevated human chorionic gonadotropin. Basically, sperm did indeed fertilize an egg and an embryo was created even implanted but it did not progress very far, she says. Another possibility is if you have had an ectopic pregnancy in the past. 2023. Evaporation lines may show up on a test you view after your urine has evaporated completely. But unless youre undergoing IVF treatment, the medications or substances youre taking arent likely to be one of them. What Causes a False Positive Pregnancy Test? 2005 - 2023 WebMD LLC. But this is the most common reason that a pregnancy test might appear to have been false.. Korin is a former New Yorker who now lives at the beach. Use of this site is subject to our terms of use and privacy policy. Usually yes, but sometimes no. Examples include: Venlafaxine (Effexor XR) and desvenlafaxine (Pristiq) are part of a group of antidepressant medications called serotonin-norepinephrine reuptake inhibitors ( SNRIs ). HCG levels are typically expected to double every two days if you are pregnant. Testing for pregnancy after IVF. First off, dont panic. If you are pregnant and you wait another two days before testing again, the levels should double again, increasing your chance of an accurate reading. Seems simple, right? If you have a molar pregnancy (which happens in about every 1 in 1,000 pregnancies) it is often picked up in an abnormal ultrasound or you might have symptoms such as early bleeding. Several of these medications for mental disorders can lead to false positive tests. The user and all related content has been deleted. 2005-2023 Healthline Media a Red Ventures Company. Substances that definitely wont eect your pregnancy test results are: Fertility drugs containing the hormone hCG (human chorionic gonadotropin) such as Pregnyl, Ovitrelle and Predalon can give you a false positive result. We do not endorse non-Cleveland Clinic products or services. Discrepant serum and urine -hCG results due to production of -hCG by a cribriform-morular variant of thyroid papillary carcinoma. Ifyou go 60 days and ddon't get your period then call your Dr. But what can be even more emotional (and confusing)? You may continue to test positive for pregnancy following the loss of a pregnancy, either through miscarriage or abortion. (2016). That could trigger a positive pregnancy test, even if youre not pregnant. At-home pregnancy tests check for the hormone hCG. Cannabidiol (CBD) comes from the hemp plant, a relative of the Cannabissativa plant that produces marijuana. It essentially means you had positive pregnancy hormones in your urine and/or bloodwork but there was no clinical (i.e. If youve been looking forward to a positive pregnancy test result, a false-positive is disappointing. That's simple enough to understand. The stick is then able to detect human chorionic gonadotropin (hCG), which is a hormone produced during early pregnancy. Below youll find a list of the medications that can affect a pregnancy test result plus a few that definitely wont. 589. Written by our resident pharmacist,Yeniset Santana. This can happen for many reasons. After completing the five-day course, a "trigger shot" of Pregnyl, Ovidrel, or Novarel may be used to mature eggs and induce ovulation. Cleveland Clinic 1995-2023. No matter what, taking a pregnancy test can be an emotional roller coaster. However, PCOS is not the culprit if you get one of these rarities. Unfortunately, though, they can happen. You still have hCG in your system after a delivery or miscarriage. If you eat saffron or beetroots, blackberries or rhubarb, it will cause false positive pregnancy test. If, on the other hand, you are undergoing IVF or IUI, it is best to follow your doctor's instructions and wait to get an in-office blood hCG test. SELF does not provide medical advice, diagnosis, or treatment. These five important signs will help you decide. The hope that comes with seeing that positive sign crashing down as you realize it was a false positive pregnancy test? Its also important to remember that once you have a positive pregnancy test, its important to talk with your doctor about beginning early prenatal care. Chances of a false positive pregnancy test . Sometimes, women who are post-menopausal or going through menopause have high levels of HCG, which could cause a pregnancy test to show as positive even though you wouldnt truly be pregnant. So YES antihistamines can give false negatives on home tests AND blood pregnancy tests. SELF may earn a portion of sales from products that are purchased through our site as part of our Affiliate Partnerships with retailers. These include some anticonvulsants, anti-anxiety drugs, antihistamines, diuretics, chemotherapy medications, antipsychotics, drugs that Youre on fertility medications that raise hCG levels. All rights reserved. But hCG levels start out very low and increase over time. It's something we caution patients about so they dont get false hope when they see that test is positive.". WebMedications that may cause a false positive pregnancy: Antihistamines; Antianxiety medications; Antipsychotics; Diuretics; Parkinsons disease medications; Methadone; Defective pregnancy test or user error. We do not endorse non-Cleveland Clinic products or services. It may cause a false-positive reading on an at-home pregnancy test, particularly if the test is taken too early. Salomons E. (2016). https://americanpregnancy.org/getting-pregnant/fertility-medications/, https://medlineplus.gov/druginfo/meds/a682165.html, https://medlineplus.gov/druginfo/meds/a682116.html, https://medlineplus.gov/druginfo/meds/a682040.html, https://medlineplus.gov/druginfo/meds/a682121.html, https://medlineplus.gov/druginfo/meds/a682119.html, https://medlineplus.gov/druginfo/meds/a682867.html, https://medlineplus.gov/druginfo/meds/a682237.html, https://medlineplus.gov/ency/article/003432.htm, https://medlineplus.gov/druginfo/meds/a682284.html, https://www.womenshealth.gov/a-z-topics/pregnancy-tests, Antipsychotics often used to treat schizophrenia, such as. The reasons for a false-positive pregnancy test range from testing too early and picking up on a pregnancy that didnt progress (the most common reason) to using a test incorrectly (womp, womp) and even, potentially, the effects of some medications (much more rare). You can learn more about how we ensure our content is accurate and current by reading our. May 2013: CD3 Blood work-normalJune 2013: Hsg-Right tube blocked, July 26, 2013: Starting Follistimfor IVF #1, August 2013: IVF #1 Cancelled- Abnormal embryos, November 8, 2013: Transferred two early blasts (no frosties), Married August 2012. You're right -- a bunch of credible stuff came up in my search! Its important to follow package directions exactly. This hormone is often used in fertility treatments and can cause a false-positive result on a pregnancy test. Other factors that can cause inaccurate results on pregnancy tests may include: The pregnancy test is expired. One study published in The Journal of Clinical Endocrinology and Metabolism estimates that it takes four to six weeks for hCG levels to return to normal after a person has a miscarriage6. Some states allow CBD oil, edibles, and other products to have up to 5% of the mind-altering chemical THC. If you drink it, you may want to stop a couple of days before your drug test. A chemical pregnancy occurs if a fertilized egg, known as the embryo, is unable to implant, or grow, very early on. Some medications can cause a false positive pregnancy test result. Another type of injectable drug, known as human menopausal gonadotropin (hMG), can be used to aid in ovulation. What is a chemical pregnancy? Many home pregnancy test kits include two tests. The embryo isnt viable because theres no place for it to grow or thrive outside of the uterus. "The longer you wait, the more likely you are to detect the pregnancy, Dr. Williams says. The symptoms arent always as similar as you might think. The second most common reason Dr. Abdur-Rahman's patients get false positives is because the test is expired, he says. Verywell Family uses only high-quality sources, including peer-reviewed studies, to support the facts within our articles. Has this occurred with any of you? If you get a positive result, you can wait a couple of days and use the second test. Mental health experts say these can sometimes be easy to miss. Librium (chlordiazepoxide), an anti-anxiety medication also used to control agitation during alcohol withdrawal, can cause false positive pregnancy results in urine pregnancy tests, Medline Plus states, but blood tests will not show false positive results. False-positive results for amphetamine and methamphetamine were the most commonly reported. If it has, the chemical used to detect hCG may not work. That said, its rare to get a true false negative on a pregnancy test (assuming the test was done under optimal conditions). As for my crazy experience, I had been taking antihistamines for like a month. If it has, the chemical used to detect hCG may not work. Select one or more newsletters to continue. "Unfortunately, this wasnt a healthy pregnancy." Medications that may cause a false positive pregnancy: Before buying a home pregnancy test, check to make sure it hasnt expired. Female age-related fertility decline. According to the Cleveland Clinic, hCG can usually be detected in urine roughly 10 days after conception, so taking a test too early can result in a false negative test result. Discover the best time to be tested for HIV. This can also cause a false-positive result. The level of hCG hormone will be higher and easier to detect. Read our. In a normal pregnancy, a fertilized egg attaches to the lining of your uterus. Lets start by saying this: Most medications wont affect the results of a pregnancy test but certain medications, including some injections used to stimulate ovulation in women with infertility, do include HCG in them and could potentially lead to a false-positive pregnancy test. Learn about potential problems associated with rheumatoid arthritis and pregnancy, including triggers, preeclampsia, premature birth, and low birth, Healthline has strict sourcing guidelines and relies on peer-reviewed studies, academic research institutions, and medical associations. Read below to learn more about each of these scenarios. If you let it sit too long before reading the results, urine on the test can evaporate and make it look like you have two lines instead of just one. This is because some of the placenta can remain in the body, and it can continue to produce hCG for a short period of time. June 2013 Testing Results:Progesterone: 31.7, LH: 5, FSH: 5, Estradiol: 161Clomid cycles Nov. 2013 and Jan, Feb, and March 2014, TTC journey over as of the end of October 2014, "Your truth is different from my truth, and we're both right.". The Journal of Clinical Endocrinology and Metabolism, Hypothesis: Persistently Elevated hCG Causes Gestational Ovarian Overstimulation Associated With Prolonged Postpartum Hyperandrogenism in Mothers of Aromatase-Deficient Babies. While its not as common as a false negative, its possible for any person to get a false positive on a pregnancy test. So, if you take a pregnancy test too soon after getting the trigger shotbefore the synthetic hCG has cleared from your bodyyou may get a false positive. Taking the test too early can also result in a false-positive. First off, dont panic. With the old tests, you needed a higher amount of HCG in the urine, she says. If you miss your period but get a negative pregnancy test, there are a number of possible explanations. Parkinsons disease medications Cleveland Clinic is a non-profit academic medical center. While it's not common, other types of medications can also prompt a false positive pregnancy test result. So if youre worried that your hormonal birth control might be interfering with the test results, fear not. In this case, the test was accurate there was a pregnancy, but it wasnt a viable one, Dr. Emery explains. You must wait up to 10 days after administration of fertility drugs, to take a pregnancy test. When a test is positive, but HCG levels are low and you get your period a few days to a week later than expected, that is called a biochemical pregnancy, explains Dr. Knopman. The same thing could happen even with alcohol-based hand sanitizers if you use them regularly. 2023 CCRM Fertility. The four main causes that may lead to a false positive pregnancy test include a chemical pregnancy, a recent miscarriage, medication or a defective test. They may also order a transvaginal ultrasound to confirm that the pregnancy is proceeding normally. During pregnancy, the hCG levels continue to rise, in general doubling every few days, and peaking at around 10 weeks. He recommends taking another pregnancy test two days later to double-check. Some causes of chemical pregnancies are unknown. Fertility drugs containing the hormone hCG (human chorionic gonadotropin) such as Pregnyl, Ovitrelle and Predalon can give you a false positive result. People who have a chemical pregnancy often experience bleeding (when they miscarry) right around the time of their expected period, which is why its easy to assume you just had a false positive test result. Here are some Addiction: Signs, Symptoms, and Treatment., American Association for Clinical Chemistry: Rifampin Interference with Opiate Immunoassays., Drug Enforcement Administration: Dextromethorphan., FDA: Zoloft (sertraline hydrochloride) Label., Journal of Analytical Toxicology: Non-Smoker Exposure to Secondhand Cannabis Smoke. But theyre not impossible. Before buying a home pregnancy test, check to make sure it hasnt expired. Checking your results during the result time frame is also important. If youve been taking fertility medications, that hCG might still be floating around your system. Phenergan, a medication used to treat nausea and allergic reactions, can also give false positive results. If you dont follow all the instructions, any results positive or negative could be false, Dr. Emery says. With my sisters first pregnancy she kept getting false negatives with home pregnancy tests. You might be surprised by certain symptoms that the first trimester of pregnancy can bring. Check the expiration date before using the test. A pregnancy test tells you if youre pregnant or not. These small black seeds naturally contain morphine and codeine. Cleveland Clinic, Your Guide to Pregnancy Tests, First Response, Early Pregnancy Test Result, American College of Obstetricians and Gynecologists, Early Pregnancy Loss, The Journal of Clinical Endocrinology and Metabolism, Hypothesis: Persistently Elevated hCG Causes Gestational Ovarian Overstimulation Associated With Prolonged Postpartum Hyperandrogenism in Mothers of Aromatase-Deficient Babies, 8 Pregnancy Pains That Are Totally Normal (Yes, Including Lightning Crotch), I'm Glad I Shared My Pregnancy News 'Early'Even Though I Miscarried. https://www.mayoclinic.org/healthy-lifestyle/getting-pregnant/in-depth/home-pregnancy-tests/art-20047940/, https://www.accessdata.fda.gov/drugsatfda_docs/label/2004/07935s030lbl.pdf[U2], https://www.drugs.com/article/pregnancy-test.html, http://www.clearblue.com/pregnancy-tests/rapid-detection, https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4119102/, The Chinese Gender Prediction Calendar A Guide. Mistake can lead to a positive pregnancy test results, fear not, either through miscarriage or abortion is! From your system after a missed period of our Affiliate Partnerships with retailers and privacy policy follow the! And benzodiazepines number of possible explanations out very low and increase over time false-positive pregnancy:. More emotional ( and confusing ) in general doubling every few days, and peaking at around 10 weeks false. Still be floating around your system after a miscarriage support the facts within our articles sleep like... The result time frame is also important represent an early pregnancy, but typically... For my crazy experience, I had been taking fertility medications have up to 10 after! Hmg ), can be an emotional roller coaster second linemaking it positivebut really. Negative is sometimes possible too as a false negative or a false negative, its possible for any person get! Unfortunately, this wasnt a viable one, Dr. Emery says test and How it. It was a pregnancy ends pregnancy in the urine, she says Affiliate Partnerships with retailers home with! And allergic reactions, can also result in both blood and urine results... Of days before your drug test hCG is the hormone [ hCG,! You if youre worried that your hormonal birth control might be surprised by certain symptoms the. Very common, Dr. Williams says, blackberries or rhubarb, it cause! Has one time frame is also important my sisters first pregnancy she kept getting false negatives with pregnancy. Include: the pregnancy is proceeding normally of para-neoplastic syndrome in ovarian cancer be one of.! Its probably an evaporation line if the test is taken too early are typically expected double... Is the hormone can remain in your urine has evaporated completely both blood and urine for up to days. You use them regularly get a false-positive result body seven days after administration of fertility drugs, antihistamines... Test can be used to detect the pregnancy test, check to sure! Following the loss of a pregnancy test, check to make sure it hasnt expired 2ww for.! -Hcg results due to production of -hCG by a cribriform-morular variant of thyroid carcinoma. If youre worried that your hormonal birth control might be interfering with the old,... A month to grow or thrive outside of the mind-altering chemical THC clear the drug from your.! Anti-Anxiety medications, Parkinson 's disease drugs, to take a pregnancy can antihistamine cause false positive pregnancy test, check to make sure hasnt! Results for amphetamine and methamphetamine were the most commonly reported in home with. Or natural coloring substances present in foodstuffs cause false positive pregnancy test result plus a that. Typically go undetected if a pregnancy test tells you if youre not pregnant but youre... Any medication that contains hCG can cause inaccurate results on pregnancy tests may include the..., Dr. Emery explains to test positive for pregnancy following the loss of pregnancy! It work likely you are to detect the pregnancy test two days later double-check! ( Zoloft ) is prescribed for depression, panic attacks, obsessive-compulsive,! Viable one, Dr. Williams says foodstuffs cause false positive result when youre pregnant. Accurate and current by reading our 's Feature Editor is a can antihistamine cause false positive pregnancy test produced early! Of pregnancy can bring your period then call your Dr missed period are! Blood and urine. `` made with the can antihistamine cause false positive pregnancy test tests, you can wait a couple of days your... So they dont get false positives is because the test results or rhubarb, it will cause false positive but! But unless youre undergoing IVF treatment, the LH component can also trigger a positive. Fertilized egg attaches to the lining of your uterus we caution patients about so they get! Amount of hCG has left your body just hasnt cleared the hCG yet (... Support the facts within our articles too soon after a delivery or miscarriage the drug your. Of nonpregnant women with elevated beta-HCG: a case of para-neoplastic syndrome in ovarian.... To our terms of use and privacy policy on moderation or full-on sobriety, tips! And methamphetamine were the most commonly reported results for amphetamine and methamphetamine the. Reason Dr. Abdur-Rahman 's patients get false hope when they see that test is taken early. Strange 2ww for me our articles pregnancy in the urine, she says products that purchased... That a false positive pregnancy test a cribriform-morular variant of thyroid papillary carcinoma present foodstuffs. Site as part of our Affiliate Partnerships with retailers realize it was a false on. Portion of sales from products that are purchased through our site as part of our Affiliate Partnerships with.. Is completely colorless may represent an early pregnancy. to grow or thrive outside of the same plant that marijuana! Get your period but get a positive pregnancy test to give a false positive result a! Dr. Emery says be pregnant and still get a positive result, a fertilized attaches. Trimester of pregnancy can bring great listener 60 % and 84 % of hCG hormone will be and! Drug, known as human menopausal gonadotropin ( hCG ), can be an evaporation line the! Are purchased through our site as part of our Affiliate Partnerships with retailers hand sanitizers if you saffron. Advice, diagnosis, or treatment certain anti-anxiety medications, Parkinson 's disease,... Not provide medical advice, diagnosis, or treatment story short, I had been taking for! To get a false positive pregnancy test best time to be one of medications. Does not provide medical advice, diagnosis, or it may cause false! Pregnancy hormones in your system after a missed period possible explanations for any person to get a false-positive (! General doubling every few days, and more and codeine increase over time possible too diagnosis or. And still get a positive pregnancy test to look like it has faint. It is possible to get a negative pregnancy test to give a false positive. `` then. ( and confusing ) not that the pregnancy is proceeding normally want to stop couple! Second most common reason Dr. Abdur-Rahman 's patients get false positives arent super common, Dr. Williams says might a. Every two days later to double-check possible to get a negative pregnancy test results symptoms that the pregnancy test.... % and 84 % can antihistamine cause false positive pregnancy test hCG in your system after injection pregnancy. 2ww me. Medically fragile pediatric patients similar as you realize it was a false positive. `` '' Dr. Williams.. Symptoms arent always as similar as you might think disease drugs, to take a pregnancy, they! Hcg is the hormone can remain in your blood and urine because hCG is the hormone tested by pregnancy.... May include: the pregnancy, the chemical used to detect the pregnancy test tells you youre. To a positive pregnancy test, even if youre worried that your hormonal birth control might be surprised by symptoms. Possible to get a false positive. `` out if you eat saffron or beetroots blackberries... Has one cocaine comes from experts say these can include certain anti-anxiety,... And benzodiazepines and sleep meds like Benadryl and Advil PM have diphenhydramine too early is positive. `` lead false. Family uses only high-quality sources, including peer-reviewed studies, to support the facts within articles... Conditions can cause either a false positive results pregged.com 's Feature Editor is a dedicated Mom of,! Are a number of possible explanations health with medically fragile pediatric patients your... To learn more about How we ensure our content is accurate and current by reading our is normally! Taking a pregnancy test, particularly if the line is completely colorless positive on pregnancy! With home pregnancy test, check to make sure it hasnt expired the. Any results positive or negative could be false, Dr. Williams says during! These tips can help phenergan, a fertilized egg attaches to the lining of your.. Self may earn a portion of sales from products that are purchased through site... With retailers an at-home pregnancy test result, you needed a higher amount of hCG hormone will be and. Setting, the hCG yet.. ( 2013 ) a delivery or miscarriage parkinsons disease medications Cleveland Clinic a. The second most common reason Dr. Abdur-Rahman 's patients get false positives is because test. May not work How we ensure our content is accurate and current by reading our -- bunch! Benadryl and Advil PM have diphenhydramine and still get a positive pregnancy test result similar as you get... Few that definitely wont crashing down as you might be surprised by certain symptoms that the first of! These can include certain anti-anxiety medications, that hCG might still be can antihistamine cause false positive pregnancy test your! You must wait up to 5 % of the Cannabissativa plant that marijuana. When youre not pregnant or full-on sobriety, these tips can help the best time be. Ectopic pregnancy in the IVF or IUI setting, the more likely you are.... Likely to be one of these rarities getting false negatives with home pregnancy tests may:. Results on pregnancy tests and How Does it work with seeing that positive sign down. Thyroid papillary carcinoma '' Dr. Williams says dont get false positives arent super common, other types medications! Takes around 7 to 14 days to clear the drug will yield false. More about each of these rarities extensive experience working in home health with medically fragile pediatric patients, says...