A case of post-in-vitro fertilization (IVF) cervical and intrauterine heterotropic pregnancy with cardiac activity in both embryos is presented. It was diagnosed in the 7(th) week of gestation by ultrasonography and cervical pregnancy was treated conservatively with intrathoracic administration of potassium chloride under transvaginal ultrasound guidance with regression of trophoblastic tissue. The intrauterine pregnancy continued and cesarean section was performed in the 31(st) week due to absent end diastolic umbilical artery fetal blood flow. A live male baby was delivered.