My fiancé and I had unprotected sex 2 days before ovulation, on the day of ovulation, and the night after. Afterward I began experiencing sore breast, headaches, & light cramping. I was scheduled to start my period 11/23 which I think I did, but it was different & lighter. And it only last 3 days.... I'm still experiencing a little dizziness, major fatigue, and I've gained 4lbs. My stomach is getting kind of solid. Idk what to think, could I be pregnant?? Has anyone experienced similar situations?