Birth control pills

I just want some feedback from your experiences on how your menstrual cycle rolls. My last period ended on January 17 and then on the 30th I had unprotected sex he pulled out but not on time so I took plan B that same day. Saturday night January 31st we had sex with a condom and finished with a condom on. On February the 2nd I got a pap and I started taking birth control pills that day. Til now I haven't gotten my period. Just this morning I wiped myself after peeing and looked like I was spotting cus I have very very small red discharge. I went to the bathroom again and it's gone. Should I expect my period this week or this normal?