When does fertilization take place in a woman?

When a fertilized egg does implant, a hormone called human chorionic gonadotropin (hCG) begins to be produced in the uterus. This is the hormone that a pregnancy test measures. It prevents the uterine lining from being shed, so the woman does not have a period. read more

Fertilization If one sperm does make its way into the fallopian tube and burrows into the egg, it fertilizes the egg. The egg changes so that no other sperm can get in. read more

In this video, Dr. Oz reveals the answer when quizzing his audience on health questions for cash. read more