My boyfriend and I had sex and the condom broke, so I took plan b within 24 hours. At the time when we had sex I was already having pms symptoms (cramps, etc) and about 4-5 days later I started my period and it was normal. It has been about a month since then and yesterday I started cramping again. Today I started bleeding again and now it has slowed down and almost completely stopped. Is this normal after plan b? I thought I was in the clear now that I had a second period, but now that it has stopped I'm freaking out.