“…Otto Spiegelberg, a German gynecologist established the diagnostic criteria for ovarian pregnancy based on intraoperative findings: (1) intact fallopian tube on the involved side, (2) the gestational sac is located in the same position as the ovary, (3) the ectopic pregnancy is connected to the uterus by the utero-ovarian ligament, and (4) the ovarian tissue is present in the wall of the gestational sac. 6,7 Several factors have been suggested which result in increased incidence of ovarian ectopic like pelvic inflammatory disease, previous gynecologic surgery, intrauterine contraceptive devices, tubal pathology. 8,9 Factors associated with extrauterine pregnancy in IVF are tubal infertility, fresh embryo transfer compared to frozen, cleavage stage compared to blastocyst stage embryos, and large number of transferred embryos.…”