Inclusion Criteria:  Aged 21-50 years old; Able to read and understand written Chinese; Primiparous and having singleton pregnancy; Delivered via spontaneous vaginal delivery, or elective cesarean delivery; ≥38 gestational week.  Exclusion Criteria:  Failed neuraxial analgesia in those receiving elective cesarean delivery; General anaesthesia; Intrapartum cesarean delivery; Women whose infants have died; Mother or baby requiring ICU after delivery; Assisted/ operative vaginal delivery.