Inclusion Criteria: • Women with 2nd trimester missed abortions  Gestational age 13-26 weeks. Women with a previous caesarian section scar,(para 1cs till para 4 cs). Women counseled and chose medication abortion rather than surgical evacuation  Exclusion Criteria:  Women with an accompanying medical disorder such as: Preeclampsia, Diabetes Mellitus or Heart disease. Primigravida women or non scarred uterus. Women with previous myomectomy or hysterotomy scar or upper segment caesarean section scar. Induction of abortion in women with congenital fetal malformations or positive fetal pulsations due to medical disorder. Women with placenta previa . Allergy or contraindications to either Ulipristal acetate or Misoprostol. Women with inevitable abortion in the form of vaginal bleeding or uterine contractions