Hi. I'm 20 years old and I had completely unprotected sex the first day of my ovulation cycle (9/20) and the guy I had sex with finished completely inside of me. I couldn't buy a Plan B pill until around 65 hours after intercourse. I took it on (9/23) and now I am experiencing brown spotting. Is this because of the pill or could this be a first sign of pregnancy? I know I'm so stupid. I had no clue he was going to actually finish inside of me after 2 minutes..... I'm scared. I'm a sophomore in college and I just can't have a baby right now. Please let me know what you think or give me some advice..... I really need it!