Pregnancy Test A Thin Blue Line The History of the Pregnancy Test Office of NIH History and Stetten Museum
Table of Content How Soon Is the Earliest You Can Test for Pregnancy? Pregnant - Bad Timing How early can home pregnancy tests show positive results? Get the Free App for Doctors How do home pregnancy tests work? Trace levels of hCG can be detected as early as eight days after ovulation. In general, home pregnancy tests are more accurate the longer you wait to take them. Testing on the day of your expected period, or after, will yield a more definitive answer. If you test too early , you could get a false negative and have to test again later. You've had a miscarriage or terminated a pregnancy in the past eight weeks, or have a molar pregnancy. Different tests reveal the results in different ways too. Some show pink or blue lines on the test strip, while others have a red plus or minus sign in a window. Digital tests give results in words ("You're pregnant"). Most have a control indicator that tells you whether the test is valid. You'll soon start receivin