Sample size
A total n = 95 singleton pregnant women without any medical or surgical complications participated in this study from 34 weeks onwards. The details of their age, parity, education level, socioeconomic status were noted. All of them underwent ultra-sonographic (USG) assessment using LOGIQ F6 (V-1.0.9) (Wipro GE) machine using a 4C-RS probe with 4 MHz frequency.