Have you ever?

Gotten pregnant while using your birth control perfectly and a condom at the same time? My parents found out I'm sexually active and seem 100% sure that I will get pregnant. My mom got pregnant while using just birth control perfectly, but they weren't using condoms too. I'm 2 months away from being 21 and they keep bringing it up and I know it's out of concern for me but it's making me extremely uncomfortable because my sex life is private and should be between me and my SO.