How A Home Pregnancy Test Works
A home pregnancy test measures the amount of a hormone called human chorionic gonadotropin present in your urine. This hormone is only produced by pregnant women, so if any amount is detected, then you are most likely pregnant. Different home pregnancy tests are formulated for detecting different amounts of human chorionic gonadotropin. For instance, some tests claim to detect a pregnancy ten to fourteen days after ovulation. However, these tests are not always completely accurate, because different women develop different levels of the hormone at different rates. Therefore, a woman may be pregnant but may not have enough human chorionic gonadotropin in her system to register with the test. False negatives are common when using home pregnancy tests, especially if you test really early in your cycle. Just because a test says you are negative does not mean that you are not pregnant. You should always retest in a few weeks just to make sure, and in the mean time, refrain from partaking in activities that could hurt the fetus in the event that you really are pregnant. A positive test result from a home pregnancy test is typically correct.