Thanks Willow, not sure as I have had AF back since DD was 11wks but have only gotten the cysts back in the past 3 mths after I weaned her - same thing happened with DS and I jsut went on the pill as I was scared of the contorting thing. I have only heard of them as corpus luteum cysts. The only one I have had that they worried about was the one before I fell pg with DS as it messed up my cycles getting AF anywhere between every 7 days to 56 days