I've been sexually active with my boyfriend since February, and he was my first. It hurt the very first time but it was expected and not very bad, since then i haven't had any problems regarding pain during sex that i couldn't explain or pin point the cause of. but this last time, it hurt quite a bit when we first began, and so much more after it was over, it was like having period cramps inside my vagina, a sensation I've never experienced before. i hope it's just a strange day in my cycle or a temporary side effect of my new birth control, but i was wondering if anyone else has experienced the same thing or something similar.