Fetal sex can be detected by USG at:
Ans. is a, i.e. 14 weeksRef. William's 23/e, p 79"Gender can be determined by experienced observers by inspection of the external genitalia by 14 weeks".Ref Williams Obs 23/e, p 79
14 weeks
16 weeks
18 weeks
20 weeks
Fetus Placenta & Fetal Membrane