SO I had my period the 9th of May of 2012. I had sex with him on May 20th, which from the internet, it states this was my first day ovulating. It was unprotected and he did "get off"...My period is suppose to start on the 7th of June. It is now the 31st of May and I am experiencing some light cramping. Is this my period cramps about to start or could it be pregnancy. I have some clear discharge too. What is maybe the percentage that I could be pregnant? Need to know soon. Any answers would be appreciated.