Me and my bf had safe sex (condom) it never broke or anything. Although he did cum in the condom and kept going a few more seconds. I'm 14. I started July 29. Skipped until October 1. Had sex a little before thanksgiving. No spotting. Just a hard stomach. I'm wondering if it's just gas though. Please help me :( I haven't had a period since October. I think it's cause I'm just starting.