My periods are like clock work they come every month on the 22nd. July 22nd i had a normal period. But then August 10th i started bleeding again, not spotting or anything, "normal period like" bleeding. So i was expecting another period on September 22nd because thats my normal day... But it was a no show. I am sexually active, if that has anything to do with it? Please, any ideas, comments, advice, would be appreciated and help put my mind at ease. Thanks.