Since you are on follicular stimulation, there is a chance that ovarian hyper stimulation may occur and that could lead to pain in the abdomen. Ovulation pain is like a pinching pain
, sometimes like menstrual cramps
and this may last from a few hours to a few days. It is associated with other features of ovulation like increased cervical mucus, tender breasts and bloating
. Optimum follicle size at the time of rupture is around 19-20 mm. Based on these facts, I advice you to correlate your symptoms with your sonograms and also with your doctor. Take care.