Most of stages of a period is a dysmenorrhea. When a girl release the egg from their ovaries,The egg will fertilize when a sperm cell comes in contact. Most of ladies who had menstruation they call...
Adolescence is the time when you are not still a kid, but you are not yet and adult (10-17) So your body needs to transition from a little kid to an adult. It is a time you grow and develop.