Can someone kindly advise as I'm very worried. Having left sided back and pelvic /groin pains for over two weeks. Had a CT scan done to rule out kidney stones but it showed an enlarged left ovary (4cm) instead. Gynaecology saw me and advised if is due to ovulation and hormones and this should normalise after three periods. However the pain has got worse and persisted. CA125/AFP was done which was normal. I haven't had an ultrasound scan yet. :(