Hi! I took diane pills for almost 10 months because I had an irregular period before. The last pill that I took was on April 7, 2013. I got my period on April 12, 2013 and my boyfriend and I had an unprotected sex on April 20,21 and 28. Few days after intercourse, I experienced an on and off abdominal cramping, headache and I have this few white discharge as well until now. My next period will suppose to be between May 10 or 11. Could I be pregnant or its a just sign of PMS?