Pregnancy Tests

Pregnancy tests detect the presence of human chorionic gonadotropin (hCG), a hormone produced after fertilization when a fertilized egg attaches to the uterus. Most home tests use a piece of absorbent material that reacts with urine; if hCG is present, it triggers a visible line or symbol on the test strip. Accuracy varies depending on timing—testing after a missed period yields more reliable results. It's best to follow instructions carefully and confirm results with a healthcare provider for confirmatory testing and prenatal care.