Add Yahoo as a preferred source to see more of our stories on Google. Wicker basket full of white and brown eggs - Biserka Stojanovic/Getty Images It is nearly impossible to tell if an egg sitting on ...

A blighted ovum occurs when a fertilized egg implants in the uterus but doesn't form an embryo. It is also referred to as an anembryonic (no embryo) pregnancy and is a leading cause of early pregnancy ...

Pregnancy is often talked about as though it’s a light switch. You’re a regular person walking around and then a switch flips — presto, you’re pregnant. The reality is more nuanced. "Sex ed really ...