Fortunately, you don’t need to stay stuck in limbo. You’re not alone, and experts have explanations as to why a faint line on a pregnancy test might happen, how to interpret it and how to avoid it in the future.
What Does a Faint Line on a Pregnancy Test Mean?
At-home pregnancy tests show positive results when they detecthCG(human chorionic gonadotropin), the pregnancy hormone, saysBrindha Bavan, MD, an ob-gyn and reproductive endocrinology and infertility physician at Stanford Medicine Fertility and Reproductive Health. So, in most cases, even a whisper of a faint second line on a pregnancy test means you’re pregnant. (Hooray!) In rare circ*mstances, though, that may not be so, and the reasons behind the true results can vary. Here’s what could cause a faint line on a pregnancy test—and what you can do about it.
In this scenario you’re definitely pregnant, but you’ve taken the testvery earlyon in your pregnancy—before hCG levels are high enough to register a strong positive result (aka an unmistakable dark line). Fortunately, you won’t have to wait long before that happens: hCG levels at the start of pregnancy tend to double every two to three days. “Wait a few days and repeat a test to see if the line clarifies,” advisesMary Jane Minkin, MD, a clinical professor of obstetrics and gynecology at the Yale School of Medicine.
Keep in mind, testing too early can happen even if you’re using anovulation kitor an app to keep tabs on your cycle. While they do help you determinewhen ovulation has occurred(so you and your partner can know when it’s time to get to work making a baby), they’re not foolproof, and cycles can vary from time to time.
The test isn’t particularly sensitive
Not allpregnancy testsare created equal. Standard urine pregnancy tests will detect hCG at a level of 25 mIU/mL or above, while early-detection tests say they can detect a cutoff of 10 mIU/mL or greater, says Bavan.
Meleen Chuang, MD, a clinical associate professor of obstetrics and gynecology at the NYU Grossman School of Medicine and medical director of women’s health at the NYU Langone Family Health Center, says that the best time to take a pregnancy test for accurate results is after you’ve missed your period. “However, if you’re eager to test earlier, you can use a highly sensitive early-detection pregnancy test, which can detect lower levels of hCG in your urine,” she adds. “These tests are designed to provide accurate results a few days before your expected period.”
You’ve experienced early pregnancy loss
If you get a faint line on a pregnancy test and then test yourself a couple of days later, you’ll see either one of two things: a darker line that indicates you’re for sure pregnant, or an extremely faint line on the pregnancy test that’s even lighter than before. A progressively fading line can mean a very early pregnancy loss called achemical pregnancy, says Minkin. Anectopic pregnancy—when a fertilized egg implants outside of your uterus, most often in the fallopian tube—could also be the reason, say experts. This is a non-viable pregnancy and a medical emergency.
Urine LH Ovulation Test Midstream
Of course, you don’t want to make any assumptions: When in doubt, it’s important to consult with your provider who can perform the appropriate tests, says Chuang.
It’s an evaporation line
Call it the pinnacle of pregnancy-test frustration. In this case, you see a faint second line on the pregnancy test (or a faint plus sign, for that matter) but it’s not at all related to the pregnancy. The difference between anevaporation lineand a faint positive is in the timing. You’ll typically notice an evaporation line if you happen to look at your test results after the recommended time interval. It’s the ink getting caught in the urine line and appearing after the urine dries, explainsShelby Dickison, MD, a Washington University ob-gyn at the Women & Infants Center in St. Louis.
What Does a Faint Line on a Pregnancy Test Look Like?
If you’re interested in exactly what a very faint line on a pregnancy test looks like, here’s an example of one.
How to Avoid Getting a Faint Line on a Pregnancy Test
The best way to avoid getting that dreaded faint line on a pregnancy test is to make sure you’re taking the test correctly and following the instructions carefully, says Chuang. She also suggests testing first thing in the morning, when your urine is more concentrated.
It’s generally best to test for pregnancy after you’ve missed your period, says Bavan. “Checking again on or after the day of your missed period will help to increase the accuracy of the test,” she says. “Follow up with your doctor for additional testing and guidance if there’s a positive result or any confusion or concerns.”
What should your next step be if you do get a faint pregnancy test line? “If you get a faint line on a pregnancy test, it’s generally recommended to retest after a few days,” says Chuang. “This allows for the hCG levels to potentially increase, leading to a clearer and more accurate result.” And if you retest and the results are still unclear, make sure to check in with your provider for further testing.
