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 ...

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 ...

Medically reviewed by Peter Weiss, MD Key Takeaways Many home pregnancy tests claim to be 99% accurate if used on the day of ...

The first at-home pregnancy tests weren’t developed until the late 1970s, and since then, the market has exploded and is now worth half a billion dollars. Tests no longer take two hours to produce ...

At first, the amount of hCG in a pregnant person's urine increases at a rapid rate of about 50% each day. So if you take the test early, accuracy is impossible. “Early” Home Pregnancy Tests Might Not ...

Wendy Wisner is a journalist and international board certified lactation consultant (IBCLC). She has written about all things pregnancy, maternal/child health ...

Pregnancy-like symptoms can occur due to hormonal imbalance, stress or conditions like PCOS—even with a negative test.