It seems like the definition of pregnancy should be simple: You either are or you're not. But medical experts disagree with some conservative lawmakers about what constitutes a pregnancy and therefore ...

Contraceptive implants and IUDs are very effective in preventing pregnancy — nearly 100 percent, statistics show. A new federal survey finds many more women are making this choice than did a decade ...

Han is a complex family planning specialist whose research focuses on developing new, non-hormonal contraceptives. In this study, his research team analyzed the genetic activity in lab-cultured ...