I had my surgery in March 2012. I had hormone/cycle issues after my surgery too. My ob/gyn said obese people store excess hormones in their fat cells and as we loose weight those hormones don't just disappear they have to work thwir way back to normal levels. I had to change my bc once; had some break through bleeding was getting ready to schedule a follow up, and I've just tested positive for pregnancy. All we can figure is my hormones were out of whack again when I got pregnant. My cycle always messed up when I would loose large chunks of weight. My insulin resistance is completely reversed now, so we think loosing 115#'s, reversing my insulin resistance, and my hormones going whack made the perfect storm for me to get pregnant. This is surely a surprise since I am on birth control, have had 4kids, pcos, and it was never this easy to get pregant before....