The age you got your first period, also called menarche, is one of those milestones people remember forever. It feels loaded with meaning, and for good reason. Hormones, growth, fertility, and the ...

Your first period after childbirth may take some time to return, especially if you are breastfeeding. It's possible to become pregnant before your first postpartum period, as ovulation occurs before ...

Your best friend, Julia, has it. Even Karen, the 10-year-old down the street, has it. So why don't you have your period yet? A girl's period, also known as menstruation, begins after she has reached ...