A false-negative pregnancy test may happen if you don't take the test first thing in the morning. It could also occur if you take the test less than 10 days after conception. Checking the results too ...

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 ...

Pregnancy blood tests are over 99% accurate at detecting hCG, a hormone that rises after conception. False negatives can occur if the test is taken too early, so timing is important. Blood tests can ...

A negative pregnancy test can happen even if you're feeling pregnancy symptoms, but it doesn’t always mean you are not pregnant. Testing too early can lead to a negative result because hormonal levels ...