Ovarian pregnancies represent a small fraction of ectopic gestations. They are especially feared due to their life-threatening intraabdominal hemorrhage. Pre- and intraoperative diagnosis is difficult. Pathogenetically ovarian pregnancy arises from the retention of a fertilized ovum in the ovary. General guidelines for the medical management are missing. In this case report, we diagnosed a subacute ruptured ovarian pregnancy during surgery and performed a partial ovarectomy via operative laparoscopy. Other therapeutic options in managing ovarian ectopic pregnancy will be discussed.