Hello, I am 18 years old. During my last day of my period (Day 5) My Partner and I had unprotected sex (He cam in me) I was still spotting blood. I stopped bleeding for a day after intercourse. It's been two days since day five of my period. I was smoking a cigerette and suddenly I felt discharge (I thought) but it was actually dark red blood. I'm really concerned if I can be pregnant or have a disease.. Help please.