Spontaneous uterine rupture in early pregnancy is a very rare complication and it occurs usually in scarred uteri. Here we present a case of spontaneous uterine rupture at 13 weeks of gestation in a 32-year-old woman. Our preoperative diagnosis was also uterine rupture. Emergency laparotomy confirmed our initial diagnosis. Clinical signs of uterine rupture in early pregnancy are nonspecific and must be distinguished from those of acute abdominal emergencies, especially ectopic pregnancy. Although spontaneous uterine rupture is thought to be a life-threatening obstetrical emergency carrying a high risk for the mother and the fetus because of hemoperitoneum risk, herein we report a patient with a 13 week missed pregnancy after uterine rupture without serious bleeding.