Me and my boyfriend had unprotected sex, he pulled out and cumed whipped it off, but than he stuck it back in! A week and a half later I thought I started my period but it was a week early, and it was lighter than usual and it only lasted 2 days, I think it might be spotting, it hurts to pee and I have to pee like every 5 min. And also ive been really tired and fell sick. I think I might be pregnant.. Could I be??