I'm on birth control, and have been for over a year now. I'm on my 6th day off of my pill. Normally i start my period on the 4th day off, and then i start my new pack on that following Sunday. It's been that way since i've been on the pill. I don't think it's stress, cuz i'm not really stressing. Could i be preggers?? I've been regular on my pill, and i'm good and take it every day, minus the few slip ups where i forget. But for the past week, i've been really refular on my pill. Does the skipped period happen with the pill??