I had sex the day after I got off my period and started the next pack the following day. I took Plan B just to be sure. That was about two weeks ago and my period is due in two more weeks. I know I'm around my ovulation time but my stomach is cramping pretty bad and I've had a little white discharge. Is this normal? Or could I be pregnant? (I've taken birth control for 3 years and rarely miss a day/take it late)