I have always been irregular ,maybe getting cycles one or twice a yr . Ive been trying to conceive for the past 10 yrs but due to my irregularity its kinda been difficult with not having a cycle every month This was one of my main reason I decided to go for the gastic sleeve procedure , I was sleeved on 1/18/12 and have lost 62lbs so far . My cycles have become regular , even before I would diet and get under 180 , i would have normal cycles but right AFTER if i gained up to 185 everything would stop .. My cycles are not 28 days cycles , there a lil off but the good thing is that I started getting them month to month , acoording to my doctor he said it can take a few months due to hormones regulating themselves..... hopefully this is whats going on, and maybe next year I can have good news