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 ...

Home pregnancy tests are miraculous little tools: They deliver fast results, are pretty simple to use, and can cost as little as a dollar. But they're not without their quirks – including the ...

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 ...

Congratulations! While it's early days in your pregnancy, your embryo is growing quickly. Pregnancy sickness is often one of the first signs that you are pregnant. Although the exact cause is not ...