hello, i'm kind of worried that i might be pregnant. it's hard to tell by the missed period, because well, i don't have a normal period (it'll go on for months and be absent for months). i'm 17 years old and i've been sexually active for two years now. my recent partner and i have been having sex for about a month now, without protection. a few weeks ago i was having signs of ovulation, but i wasn't completely sure. we had sex, and since then i've been having bad stomach pains. recently, i'm assuming he went to deep and it made my lower stomach swell up and it was painful to the touch. but now, my breasts are sensitive and i feel more moody then normal. any ideas on what could be going on if it isn't pregnancy.