I'm 16, and have been on birth control for almost 3 months now. Lately my boyfriend and I have been having unprotected sex, but he has pulled out on time everytime. Forsure. But lately I have been experiencing bleeding between periods and slight cramping. Nothing too painful though. My mom is saying its normal and it could just be that the pill I'm on, isnt the right pill for me. But I don't know what it could be.. Help!