I don’t want to upset you, but until a person reaches at least adolescence, it’s almost impossible to distinguish boys from girls by the shape of their skulls. At the 20th week of pregnancy, the difference between a boy and a girl in the womb is clearly visible. As the baby grows and develops, this difference becomes even more pronounced and on ultrasound in the 3rd trimester of pregnancy it is clearly visible: a son or daughter is born.
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