23
Dec
Can Pregnancy Tests Be Wrong. Even if your period is late according to your typical cycle you might have ovulated later in the month. The answer is yes. False positives and negatives can occur for a variety of reasons. Can Pregnancy Tests Be Wrong.
In truth there are a range of factors which can give you a false positive or a false negative result. Since many test kits come with two testers repeat the procedure in a few days time to be doubly sure of the results. The use of fertility drugs that contain hCG can lead to false positives on pregnancy tests according to The Mayo Clinic. Most non-digital urine pregnancy tests will show one line if a woman is not pregnant and two lines if she is pregnant or a plus or minus sign. Whether you want to be pregnant or you dont its easy to assume pregnancy tests are always right. The most common reason for a false negative is that you took the test too early.
Since the pregnancy test will be improper the test results also will be invalid or false.
The most common reason for a false negative is that you took the test too early. Other drugs besides fertility drugs can mimic the effect of hCG on pregnancy tests including some hypnotics diuretics anti-convulsants and tranquilizers. Its not common but sometimes this effect leads to urine and blood tests giving the wrong result. Since many test kits come with two testers repeat the procedure in a few days time to be doubly sure of the results. Just like home pregnancy tests labs vary in what is considered a positive pregnancy test. A pregnancy test can be wrong if the kit is defective.