I had unprotected sex the predicted day of ovulation and the day before. I just recently stopped taking the depo shot after one shot. I started my period the 15th of March, lasted 5 days and then stopped and started again on the 24th for 5 days and then stopped. I just recently got what I think is my period on the 19th and i bleed until the 21st. NEVER in my life have I bleed for 3 days. It was light all but one day. I don’t know if I’m pregnant, I don’t think I am but could I be? Has this happened to anyone else ???