Consider perhaps that it's not ovarian pain but endometriosis. Have you been worked up for this condition? The pain most of us feel with ovarian cysts is caused by the weight of the cyst pulling the ovary out of position (ovaries are on stalks, remember?).
Also, try a different sexual position - NOT missionary - to see if that is easier for you.
good luck!

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203/146/150 on the Fat Flush Plan for life and perky!