Pregnancy tests detect the hormone hCG in urine and are up to 99% accurate when used correctly, but using an expired test can ...

Home pregnancy tests that use colored streaks to indicate positive results may display an evaporation line (evap line). This is a colorless streak that occurs when urine dries on the test strip.

Amanda Nelson is now serving as a gestational surrogate — carrying a child who is not genetically hers for people she didn't ...