I'm 16 and my boyfriends 17. We had sex on November 24 but only for a few minutes without a condom and he did cum but not inside of me. then, we had sex last Saturday on December 8 with a condom half the time and without a condom the other half.and he didn't cum at all. My period was already a late before we had sex and is now a two weeks late. Could I be pregnant? I've had cramps, tender breasts and and mood swings like normal on my period but no period! I'm scared! Could I be pregnant?