Had sex first time day after period ended. Used a condom and it didn't break or leak, worried about prec**, and took plan b within 24 hours. A week later i started bleed heavy for 3 days light for 4, then medium bleed another consecutive day. So 8 days of bleeding. Could this have been my period 2 weeks early? Could I be pregnant? I know the statistics with plan b, and I know its for emergency, which is what I used it for. My question is with the heavy bleeding bright red with clots for days, could I be pregnant?