Why is one pregnancy test positive and the other negative?
Some women see a clearly distinguishable positive line after taking a home test. But in other cases, the positive line appears faded. In these instances, a faint positive can be caused by low levels of the pregnancy hormone human chorionic gonadotropin (hCG).
Can a pregnancy test show positive and be false?
It’s possible to have a positive pregnancy test even if you aren’t technically pregnant. This is called a false positive. It’s sometimes caused by a chemical pregnancy. A chemical pregnancy occurs if a fertilized egg, known as the embryo, is unable to implant, or grow, very early on.
Can you have a positive urine test and negative blood test?
As with urine/home pregnancy tests, it is possible to end up with false results (both negative and positive) from a blood pregnancy test.
How common is it to have a negative pregnancy test and be pregnant?
In other words, the test may say “not pregnant” when in reality you are pregnant. Sometimes a test can also return a false positive result, detecting pregnancy where none exists, but false negative results are much more common, with as many as 9 out of 15 women testing negative until seven or eight weeks.
Has anyone had a false negative with first response?
Studies on the packaging of such kits as First Response say 48 percent of women get a “false negative” result when they test three days before their expected period. In other words, the test told nearly half of the women they weren’t pregnant when, in fact, they were.
Is it normal to be 3 days late and test negative?
However, it is common to get a false negative in the first few days after a missed period. The amount of hCG in your body increases daily in early pregnancy. If you test too early, there might not be enough hCG for a positive test. Testing one week after a missed period is most likely to give you accurate results.
Can I be 3 days late and not pregnant?
Some people have their period every 28 days like clockwork. But most people will experience a late or missed period at least once without being pregnant, and that’s perfectly normal. For many, a late period can trigger thoughts of potential pregnancy. But a late period doesn’t necessarily mean that you’re pregnant.
How long should I wait to take a pregnancy test after a negative result?
Most pregnancy tests include instructions that encourage you to wait at least one week between a negative test and taking another pregnancy test. This is to allow time for your body to build up enough hCG (human chorionic gonadotropin) to be detected in your urine.
How many pregnancy tests should I take if negative?
If you get a negative result and want to be extra sure, take a second test. Just be sure to wait a few days—taking a second test in the same sitting won’t give you a different result.