Generally 28-34 weeks of pregnancy is the most active period of fetal movement, when the fetus is more developed and has relatively more room to move, so the fetal movement is felt most obviously. At the same time, some pregnant women may feel obvious fetal movement around 24 weeks due to their lighter weight and thinner abdominal wall. Generally after 28 weeks, the fetus will form its own biological clock and its activity will be more obvious at a specific time, the most active time is mostly at night, between 8-11pm. In addition is the stimulation of external factors, such as after eating or hearing music, the fetus will respond by way of fetal movement, the pregnant woman will feel the fetal movement obvious. If the fetal movement is too frequent and has exceeded the normal frequency of fetal movement, it is considered to be an abnormal performance, so you should visit the obstetrics department in time to improve the ultrasound, fetal heart monitoring and other examinations to exclude the possibility of intrauterine hypoxia of the fetus. Pregnant women should pay attention to maintain a reasonable diet, eat more fresh vegetables and fruits, supplement protein-rich food, and maintain the right amount of exercise to promote the growth and development of the fetus.