hi every one i'm new to this site maybe someone can help me. I had my last cycle on 8/15 to 8/22 now i'm on my cycle again which started 9/1 I had unprotected sex sunday 8/29. I was on depo for five years and just got off about a year and a month ago. My periods have not been right since I have my cycle every two weeks or sometimes every week. I went to the doctor and they said nothing was wrong. My doctor tryed to put me on birth control to regulate my periods but that did not work. Anyone advice would help thx