Maternal adnexal torsion in pregnancy, with a reported incidence of 1-10 per 10,000 spontaneous pregnancies, is very uncommon. Since it has been described as a severe complication after controlled ovarian hyper-stimulation for in vitro fertilization (IVF), it is more common in IVF pregnancies. This condition mainly occurs in the first trimester; it is rare during the late second trimester. Conservative management of adnexal torsion by laparoscopy is extended for the management of such conditions during pregnancy. An enlarged uterus could cause operational difficulties in the second trimester In this paper, we report a case of adnexal torsion in a twin, 23 weeks with IVF pregnancy, that was successfully untwisted by laparoscopy.