Intramural pregnancy, an unusual type of ectopic pregnancy, is conception within the uterine wall, surrounded by myometrium without a connection to the endometrial cavity, fallopian tubes or the round ligament. Common complaints are vaginal spotting, pelvic pain, and a prolonged menstrual period. Before rupture, diagnosis is usually suspected by ultrasonographic findings and confirmed by laparoscopy or laparotomy. On 2-D ultrasound, a gestational sac completely urrounded by myometrium without any relation with the endometrium is the common finding of an intramural ectopic pregnancy. Three-D transvaginal ultrasonography (TVUSG) has several advantages, including more accurate diagnosis of the location of the gestational sac within the myometrium by multiple scan planes and providing better visualization of the endometrium and myometrium separately. We report here a case of intramural ectopic pregnancy in an asymptomatic primigravid woman treated without any medical or surgical interventions.