irregular periods. I am 5 3, 240 lbs and have had irregular periods for many many years now. I was on the pill back in 1997 and then got off of it and about 8 years ago i was on the depovera shot but then got off of that. The longest that i have gone without a period is a year. Not sure what to do. My fiance has a vasectomy when he was younger so I don't think I could be pregnant. I do have my period now but it's very light and has lasted about 9 days instead of my normal 7. Please help...