[INTRODUCTION - Simultaneous presence of intrauterine and extrauterine gestations is very rare. CASE REPORT - A 26 year old multiparous woman known to be 10 weeks pregnant presented with severe abdominal pain. Transabdominal sonography revealed a concomitant ectopic pregnancy with large amount of intraperitoneal fluid. Cardiac activities of both the intrauterine and the ectopic fetuses were clearly visible on abdominal ultrasound. Emergency laparoscopy confirmed intraabdominal hemorrhage and rupture of the left fallopian tube. The laparoscopic salpingectomy did not affect the ongoing intrauterine pregnancy. The woman subsequently delivered a healthy infant. CONCLUSION - Though heterotopic pregnancy especially without previous ovarian hyperstimulation is extremely rare. The confirmation of an intrauterine pregnancy does not exclude a co-existing ectopic pregnancy as well as in case of extrauterine pregnancy the simultaneous presence of an intrauterine pregnancy must be considered.]