Heterotopic pregnancy is the simultaneous occurrence of two or more implantation sites. A 25-year-old infertile patient with a history of bilateral salpingectomy, uterine septum resection, and left cornual resection was diagnosed with heterotopic pregnancy in her second in vitro fertilization trial. She attended our clinic when she was 7-week pregnant, complaining initially of severe abdominal pain. Findings associated with peritoneal irritation were positive during the physical examination. Transvaginal ultrasound revealed right cornual ectopic pregnancy with a live fetus in the middle of the uterine cavity. Also free fluid was noted in the pelvis. A diagnosis of heterotopic pregnancy with rupture of the cornual pregnancy was made. She underwent emergency laparoscopy with aspiration of the ruptured ectopic pregnancy, suturing to the entire visible cornual margins, and assurance of good haemostasis. Her recovery was uneventful and she continued receiving care in our obstetric unit. She delivered a healthy newborn by cesarean section at term.