Inclusion Criteria:  Term pregnancy (37-42) weeks. Expected foetal birth weight of 2.5-4.0 kg on USG at term. Singleton live pregnancy. Cephalic presentation. Cervical dilatation of =/< 4cms. Reactive CTG at onset of labour. Confirmation of ROM by Direct visualization or Fern test.  Exclusion Criteria:  Contracted pelvis. Previous uterine surgery " upper segment ". Pregnancy complications like antepartum haemorrhage, pregnancy induced hypertension, gestational diabetes mellitus, IUGR. Fetal congenital anomalies. Abnormal or non reassuring fetal CTG at term or at onset of labour.