Yes, it is possible. Getting a negative result doesn't mean you're not pregnant, it may just mean your hCG levels are not high enough for the test to detect the hormone in your urine.
If you get a negative test result, but you still think you might be pregnant, take another test one week after your missed period or contact your health care provider.
Yes, it's possible to be pregnant and have a negative pregnancy test result. In fact, some researchers estimate this happens with up to 5 percent of home pregnancy tests. It's called a "false negative" pregnancy test result.
Can Too Much Pee on a Pregnancy Test Make It Negative? Urinating too much on a urine pregnancy test should not cause a false negative result. But diluted urine, or urine with a higher water content, can impact a pregnancy test by skewing results.
Test too early and the amount of hCG in your urine isn't detectable. As many as 9 out of 15 women will get a false negative until seven or eight weeks of pregnancy.
hCG is a hormone produced by your placenta when you are pregnant. It appears shortly after the embryo attaches to the wall of the uterus. If you are pregnant, this hormone increases very rapidly. If you have a 28 day menstrual cycle, you can detect hCG in your urine 12-15 days after ovulation.
Confirming Your Pregnancy at 8 Weeks
It's also possible to receive a negative pregnancy test yet still be pregnant!
The most common reason for a late period and a negative pregnancy test is that your period is simply delayed and you're not pregnant. Having one or two irregular cycles a year is not unusual and does not mean there is something wrong. Reasons your period might be late include: Breastfeeding.
The tests work by detecting certain levels of human chorionic gonadotropin (hCG) in your urine. It's possible to get a false negative result. If you don't follow the directions accurately or you take the test too early, you might not have enough hCG built up to get a positive result.
However, you don't need to stress too much about taking a pregnancy test at a specific time of day. Using urine later on when it's less concentrated may only “hypothetically delay a positive result by only 12 to 24 hours,” advises Dr. Flanagan.
If you're testing before the day of your expected period, you may see a negative result – even if you're pregnant – if: Your test wasn't sensitive enough for early testing. You didn't use the first urine of the day, so concentration of hCG in your urine wasn't high enough.
Well, in pregnant women with twins, the HCG hormone in early pregnancy is very high. High levels of HCG in early pregnancy prevent antibodies from binding to the hormone, so when a test pack is checked, the results are negative. This condition is known as the prozone effect.
Pregnancy tests can sometimes give a false negative result to women several weeks into their pregnancies, according to research by Ann Gronowski, PhD, a professor of pathology and immunology at Washington University School of Medicine in St.
Home pregnancy tests can be up to 99% accurate. However, in some instances, they may produce a false-positive result. Incorrect test usage, previous abortions and miscarriages, and some medications may lead to a false-positive pregnancy test result. People should always see their doctor after a positive pregnancy test.
According to pregnancy kit manufacturers, most at-home pregnancy tests are 98% to 99% accurate when you use them exactly as instructed. Positive results can be trusted, but you can get a false negative result if you take the test too soon.
Diluted hCG levels
“If urine is diluted, there might not be enough pregnancy hormone in it to be detected,” explains Dr. Homaifar. If you think you're ready to take a test, you're likely to get the most accurate results when you wake up.
There are many reasons your period could be late other than pregnancy. Stress, illness, and changes in weight or nutrition can all affect your menstrual cycle. If you're taking hormonal birth control or took emergency contraception, that can also change your period.
To get a positive pregnancy test, most women will have to wait 5-10 days after their period was due. Some may detect pregnancy earlier becuase hCG accumulates at different rates for different women.
A borderline result is generated by some assays when the hCG level is between 5 and 25 mIU/mL. Samples reported as borderline are considered indeterminate, and clinicians should request a repeat test within 48 to 72 hours or obtain a quantitative serum hCG.
Don't Drink A Lot Of Water Before Taking The Test
Diluted urine tends to also have diluted hCG levels which can skew the test results. Take a test when you naturally need to pee. This way, you'll avoid diluting your hCG level and getting a false 'Not Pregnant' result.
1. First Response Early Result. This bestselling product tops our list as the best pregnancy test for early detection. It's sensitive enough to give results 6 days before your missed period (with varying degrees of accuracy, given that hCG levels increase at different rates for each person).
Even if you are pregnant with twins, there's no guarantee you will produce hCG any sooner than if you were pregnant with one baby. But because your levels may be higher, it is possible to detect a pregnancy slightly earlier due to higher levels of hCG.