Just to add some perspective here-be very, very glad you know about this. My (now grown) daughter had an experience straight out of a teen novel. She and her boyfriend were having sex, I had no idea and would never have suspected it, and she ended up pregnant. She didn't tell me out of fear until she miscarried. It was a disastrous time and i'm so glad you, OP, and all these other folks are giving such good advice to their daughters.