I've been having unprotected sex from 11/27-12-1 (4-5x each day) he ejuclated in me each time. My period is regular but I started bleeding on 12/2 for 3 day (a week before my actual pd is due) it stopped for a day and came back it wasn't normal at all. Now my body feels very strange, I have all these weird feelings and symptoms; cramps, back pains and stomach pains...Could I be pregnant??