OK, I started my period nov.28th, and got off that next Wednesday, dec. 6th. And for some weird reason, I started again this Tuesday, the 12th, and I have no clue why. I shouldn't have started until the last week of this month or the first week of next month. The last time I had sex was this Monday, the day before I started my period again. I'm really freaked out and don't know what to think. Yeah, this has happened before, but it only happens every once in awhile.