So on February 8 my boyfriend and I had sex while I was on my period and the condom broke, but he didn't come inside me. I still freaked out because of the Precum so I went and bought the plan b half an hour later. When I took the pill a day later my period completely stopped. Then I had reddish/brown spotting for the next 3 or 4 days. Now it's a month later and I haven't had my period yet, is this normal? When should I expect my next period to come?