Fetal movement can be counted after 28 weeks of pregnancy. Fetal movement is the activity of the fetus in the uterus, which can be sensed by the pregnant woman. Fetal movement is the easiest way for pregnant women to self-monitor the fetus in the uterus during pregnancy. Fetal movements usually start around 18 to 20 weeks of pregnancy, but it does not mean that you should start counting them between 16 and 20 weeks. This is because fetal movements are not very regular at the beginning of the pregnancy, and usually after 28 weeks of pregnancy, the fetus will have a certain circadian rhythm in the uterus, so the fetal movements will become more regular, and it is only in this case that counting the fetal movements will be useful for the pregnant woman to monitor. It is recommended that pregnant women in late pregnancy to learn to count fetal movement, general fetal movement is about 3 to 5 times per hour, if there is too much or too little fetal movement, we should go to the hospital in time to do fetal monitoring or fetal biophysical scoring, and give oxygen and other treatments, such as no improvement, if necessary, terminate the pregnancy in a timely manner.