I had unprotected sex and took the plan B pill about 36 hours later. About 8 days later i noticed light brown discharge and coloring for a few days and then one day of extremely heavy bleeding (very very dark red, clotting, had to use 2 tampons) and then nothing after that. For the past 3 weeks I've had random tiny cramps and now my breasts are slightly tender. I don't know if my body is confused by the pill or if I really am pregnant. I've taken the pill before and my body has never reacted this way and I figured since there was so much blood that that would mean the pill worked but I could be wrong. Please help!!