I know this is crazy 5 nights ago was my ovulation day and me and my husband sex that was on thursday then on saterday had sex again today is early tueday morning and my period isn due till the 13th today is the 2nd im havin lower back pains it feels like its a pulled muscle but i havent been doing anything to get a pulled muscle im also tired alot and just want to sleep and im bloated like im on my period ive alwaays had a regular period that last 4 days always on time is it possible that i could be pregnant