Inclusion Criteria:  Patients with singleton pregnancies Post term pregnancies Patients with vertex presentation, Patients with intact membranes Patients with no uterine contractions  Exclusion Criteria:  women with BMI >30, multiparity and multiple pregnancies, patients with macrosomia (>4500 gr), patients with major fetal congenital abnormality or fetal death and any contraindications to vaginal birth (e.g. active genital herpes), patients with abnormal Pap smears, patients with a history of previous cesarean section, myomectomy, hysteroscopic surgeries, dilatation and curettages, loop electrosurgical excision procedures, and cervical conization.