Most of the girls I know have sex and their all on birth control, A couple of them aren't even having sex yet and are still getting put on birth control. I'm considering doing it but I don't see the point as I don't have a boyfriend and don't plan on getting one anytime soon.. My friends said their moms all know about it and one friend said "Sure, you have sex without your mom knowing but it's so much easier just to tell them" Then her mom took her in for a papsmear Gosh that was so funny. She refered to it as the most awkard moment of her life.