On Jan 1st I had unprotected sex with my ex boyfriend.. He pulled out before cuming but I didn't know that he was ejaculating and I slipped his penis back inside me.. He had sperm all over it and he bursted a little bit more sperm inside of me.. The thing is that I got my period a few hours after intercourse.. It's not regular, my period wasn't suppose to come until the 8th of the current month.. Is there a possibility of pregnancy?? I had morning sickness yesterday, terrible headache & naussea.. I took a pregnancy test yesterday 1/17/2008, an EPT to be accurate.. The results where negative.. But I was told that the results weren't even 50% accurate since I'm nowwhere near having a missed period.. What should I do, think, or expect?? HELP PLEASE!!