How common is a negative pregnancy test if you are pregnant?

Answer:

There are several things that can contribute to a negative pregnancy test even if you are pregnant. Some medications can give you a false negative, the timing of the test can affect the results. If you did not follow directions properly; if you let the test sit for too long the results may read negative after a while. It is important to read the results within the amount of time given on the instructions of that particular pregnancy test you bought. If you did not perform the test properly (example: you drank a lot of fluids before taking the test, which can dilute your urine). Etc.

First answer by Kharrima. Last edit by Kharrima. Contributor trust: 967 [recommend contributor recommended]. Question popularity: 2 [recommend question].