The latest time of fetal movement of the first child varies from person to person, fetal movement usually appears around 18-20 weeks of pregnancy, the earliest usually begins to appear around 16 weeks of pregnancy, the latest usually appears around 20 weeks of pregnancy, of course, there are some special circumstances, fetal movement will appear a little earlier or later. As the first mothers do not feel the fetal movement clearly or the fetus body quality is different, the pregnant women abdominal fat is too thick and other factors, so that the pregnant women fetal movement at the beginning is relatively mild, pregnant women can not easily feel, after 18 weeks of pregnancy with the gradual growth of the fetus, the fetal movement amplitude can gradually increase, so it is easier to detect, in 28-32 weeks of pregnancy reached the peak, after 38 weeks of pregnancy and gradually reduced. If a new mother still does not feel the fetal movement after 20 weeks of pregnancy, she should be alert and go to the hospital to improve fetal heart monitoring and ultrasound examination to exclude abnormalities such as fetal dysplasia or abortion, and if necessary, to terminate the pregnancy. When the fetus is moving, the pregnant woman is in the middle of pregnancy, when the fetal growth and development speed begins to increase significantly, the pregnant woman should pay attention to increase the intake of nutrients, eat more high-protein food, vegetables and fruits, do not contact with toxic substances and radiation sources, and ensure sufficient sleep and rest time. After the fetal movements appear, pregnant women can develop the habit of recording the number and frequency of fetal movements by counting the fetal movements themselves to observe the growth and development of the fetus.