Medically reviewed by Kiarra King, M.D. Key Points Expecting twins can rarely cause a false negative pregnancy test due to something called the "hook effect."It's best to test after a missed period ...

If you're expecting multiples, it's possible to get a false negative pregnancy test result, though it's not very common. Here's the reason behind this rare phenomenon. If you’re trying to conceive a ...

If you see a faint line on your pregnancy test after it’s dried, it’s probably an evaporation line. This can be confused with ...

Feeling pregnant with a negative test can be confusing and has several explanations. Premenstrual symptoms and early pregnancy symptoms can feel the same. Fertility treatments and stress can also ...