J.Z.
HA - YEP! Went through the same thing. I started taking BC after my daughter was born b/c we learned how babies are made (Our kids are just shy of being 14 mos apart)...hehe. Anyways, it was very frustrating b/c I did the same thing as you, one week on 4 weeks off two weeks on 1 week off.. and then even got to the point that I had it for a straight month!!! I called my dr and they said it could take 3 to 6 mos for my body to regulate it self. Honestly... I threw in the towel b/c I was miserable with how I was feeling taking the BC and ALWAYS being on my period. And, again, we learned how babies are made, haha... and we just use other protection. Good Luck with it! Iti just may take a while longer yet.