Fetal growth and development at 34 weeks At 34 weeks of pregnancy, the fetus has entered the third stage of labor and is only six weeks away from birth. At this time, the various organs of the fetus\’ body have basically matured and begun to enter the stage of rapid weight gain. The following introduces the growth and development of the fetus at 34 weeks from four aspects. 1. Physical health: After 33 weeks of growth and development, the fetus’s body gradually becomes healthy and stable. At this time, the fetus\’s respiratory system has matured, most of the alveoli have formed, and it is able to breathe oxygen through the placenta. The skin all over the body has also become more delicate and free of lesions. skeletal and muscular system