Introduction and Importance: Abdominal pregnancy is a rare form of ectopic pregnancies, accounts less than 1% of all types of ectopic pregnancy. Its significance comes from high morbidity and mortality rates. Case Presentation: We present a case of a 22-year-old shocked patient with acute abdominal pain underwent laparotomy, abdominal pregnancy implanted into the posterior wall of the uterus diagnosis was made, and appropriate follow-up was offered. Clinical Discussion: Acute abdominal pain may be the main symptom of the abdominal pregnancy. The diagnosis was made by direct visualization of the products of conception and pathological study confirmed. Conclusion: The first case of abdominal pregnancy is implanted into the posterior wall of the uterus. Follow-up is recommended until β-human chorionic gonadotropin levels become undetectable.