My boyfriend and I had sex about a week ago. He got soft a bit quicker then usual after ejaculation and some seemed to have spilled out of the condom. I took plan b the following morning, about 7 am..no less then 5 hours after the sex. Within the next 2 days I expirenced what seemed to be a period, very, very light and it only lasted about 3 days. Now my cycle in general is not very accurate and I have a hard time judging when i'll expect to get my next period. For a while I assumed it was my period only super light, like the packaged said might happen..but now i'm expirencing what I usually get before I get my period. Should I assume I am late because of Plan B or should I take a pregnancy test within the next few days just to be sure. Mind you this all took place in about a week and a half to the day i'm writing this. Any thoughts would be must appreciated.