I had sex on the 27th of this month, unprotected, with my bf. The next day my period started. The 30th I had sex with my best friend, unprotected and totally unexpected.... I don't know if im pregnant. Im scared. Im only 18 and I don't know how to tell either guy that and pregnant and if it either is or isn't theirs....if im even pregnant. My stomach hurts when I go to bed and my period has been acting funny. I don't know what to do. HELP!!!