Recently, me and my boyfriend have had sex. He came in me but for two or three seconds then pulled out. I've been on tri sprinted for 7+ months, and I take the pill at 7:30 everyday but own the weekends, them I take it 10 or 11. I've had really bad abdominal pains and center stomach pain and very heavy vaginal discharge, could I be pregnant? What are my chance of being pregnant?