Fetal babies in the 19th week of pregnancy have different growth and development due to the differences in their physique. However, generally at this time, the fetus already has breathing movement, hair begins to grow, genitals have formed, fetal movement can be felt, and sensory organs are developing rapidly. At 19 weeks of pregnancy, the fetus weighs about 200-250 grams and is about 23cm long. The fetus will have respiratory movements at this time, hair begins to grow, and reproductive organs have formed. Fetal skin becomes dark red, fetal fat appears, and swallowing and urination functions begin to appear. Most pregnant women can feel fetal movement during this period, with a large range of motion and activity, changing positions and making various movements in the uterus. Meanwhile, the most significant change of the fetus is the rapid development of sense organs, most of which differentiate into different areas of vision, touch, smell, hearing and taste.