Cramping really bad

This is probably going to be a tmi and I am sorry in advance. These past few months I have been having unprotected sex and haven’t gotten pregnant. This month we waited until I was ovulating and then had sex everyday during ovulation. It’s been a couple weeks, and my period is supposed to come in 5 days. I have felt really emotional and I have been severely cramping everyday for a week..? I don’t know why I guess I am wondering if this has happened to anyone else? I just need opinions and advice.