I've been on microgestin fe 1/20 for almost 4 weeks ( I'm about to start the 7 inactive pills) , my doctor told me to start the Sunday I start my period, I started a Wednesday so I started microgestin that Sunday, well I'm very strict with my pill, every day 430 on the dot, havent been late, haven't missed a pill either. Well my fiance cum'd in me about 2 weeks after I started the pill, is it possible I could be pregnant!? Also when am I supposed to start my period???