Background: Heterotopic pregnancy is a rare case of pregnancy. The incident is estimated to be 1:30000 to spontaneus pregnancy. Heterotopic pregnancy is a life threatening condition to maternal and intrauterine fetus. Case Report:A 36 years old woman came with over 1 month history of amenorrhea, after being examined, her gestational age was 9-10 weeks. On 28 th February 2018 patient came to PHC due to lower abdominal pain and vaginal bleeding. Ectopic pregnancy was revealed then laparotomy was performed. Then, patient came back and complained of enlarged abdomen since the laparotomy, ultrasonography examination showed intrauterine fetus. At 35 weeks gestational age, patient was undergoing cesarean section due to fetal distress. Discussion:Heterotopic pregnancy are both intrauterine and ectopic pregnancy that occur at the same time. Heterotopic pregnancy often hardly detect because of unspecific symptoms. In this case it also found difficulty in diagnosing heterotopic pregnancy, the patient was only diagnosed as ruptured ectopic pregnancy. Conclusion:Heterotopic pregnancy has a high mortality rate if the diagnosis and treatment is not done well. Ultrasonography (USG) examination has an important role in order to help diagnosing in remote area.