My period was one day late already according to an iPhone tracker I use. That day i had unprotected sex but got plan b the next night. So I was 1 day late for my period, then had sex, then took plan b. I'm wondering since I was supposed to start my period basically the day i had sex will my period be even later/more delayed since i took plan b?? I'm scared because now I'm 5 days late for my period but please keep in mind before responding that I was technically one day late before I had sex. Please serious, knowledgeable responses only, I'm worried.