Last period was June 6th for 4 days...normally I'm exactly 4 weeks from the day I start, so as I charted on my calendar I should of started on Saturday the 4th of July... But I've gotten nothing. Only brown discharge when I wipe. I've put a tampon in just to be safe and only brown discharge on my tampon aswell(sorry for the info).. Does anyone have any idea of what's going on? Thanks