Me and this guy had unprotected sex 4 months ago. i was on my period when we had sex. those next two months after didnt have my period. i finally had a period but this month i havent so far .my boobs are just now getting sore, ive been peeing more now, not getting full today & the past few days ive been having lower cramps. this has all just now been happening also, my belly is bloated & looks like im pregnant.. im just now starting to look pregnant too. ive been sorta tired, since 4 months iv been having headaches on & off but not really pther signs other than cramping. am i pregnant ? what could this be? im only 16..