So i've been on birth control for about a year, and i've been having unprotected sex with my boyfriend. I take the pill every day around the same time. My boyfriend ALWAYS pulls out. I was due to have my period on sunday, but it's now wednesday. My period usually always comes on sunday or monday, when i start taking my sugar pills. I start taking my pills again on sunday.. I don't think that i'm pregnant.. but my period is late and i'm really scared.. Any advice?