profile of the 20 weeks old baby fetus face and chest during a halfway ultrasaound examination

abdomen abortion anti antiabortion baby birth body chest control development directly echography embryo examination expecting face fetus foetus genetics gestation half halfway hand human image internal life looking medical medicine miscarriage newborn old pregnancy pregnant premature prenatal pro profile reproduction reproductive screen smile sonogram ultrasaound ultrasonography ultrasound unborn usg uterus vitro way weeks womb