How Common is False Positive?
Home pregnancy tests are about 97% accurate when the results are read on time and all of the instructions are followed correctly. A false positive could be the result of: • Chemical Interference: Some drugs contain the pregnancy hormone Human Chorionic Gonadotropin (HCG). If you are taking one of these it can result in a false positive pregnancy test. If you are having infertility treatments and have had a shot of HCG, you should not take a pregnancy test until you are sure the shot is out of your system. • Chemical Pregnancy: Unfortunately, a chemical pregnancy is the result of an early miscarriage. Because many pregnancy tests are highly sensitive, they can sometimes detect these pregnancies even though they’ve already ended. When this occurs, the woman will get her period as normal. It is estimated that half of all first pregnancies end in miscarriage. • Evaporation Lines: Not technically a false reading, but a result of user error. A common mistake that women make when reading home
