Combined intrauterine and ectopic (heterotopic) pregnancy occurs in approximately 1 in 30,000 spontaneous gestations. Heterotopic gestations are increased in women who have had reconstructive pelvic surgery, pelvic inflammatory disease and artificial ovarian hyperstimulation. Patients who require assisted reproductive technologies, such as in vitro fertilization / embryo transfer and gamete intrafallopian transfer, also have an increased risk of a heterotopic pregnancy. We experienced two cases of combined pregnancy following IVF-ET. Following is a report of these cases with a brief review of references.