So, I was suppose to start my period at the beginning of this month (September) but I have yet to even have the premenstrual symptoms (cramps, diarrhea, ect.) I normally do. With that being said, yes I have been having unprotected sex but I am also irregular (which I have read it's harder to get pregnant if you are) but I've never been this late before. So, my question is, what are the chances of me being pregnant?