Hi my period reneges from 29 to 31 days I have done a pregnancy test and it said negative. I am really tired, dizzy and light headed and have some stomach cramps but also have had diarrhea. My breast hurt a little enough not to notice u less I think about it. I just want to know is there any chance that I could be pregnant? I got my period on 17 May till 21st may we had unprotected sex on 23, 25, 28, 29, 30 & 1st , I ovulated on 31st may (I used an ovulation test) could u be pregnant still or is it just my period coming?