Fetal movements may appear in the third month of pregnancy, but most pregnant women experience fetal movements at 16-20 weeks, which is 4-5 months of age. A few pregnant women may be more sensitive, have a thin abdominal wall, feel fetal movements more clearly when the fetus is well developed, or be more sensitive to fetal movements due to their history of pregnancy, and thus be able to feel fetal movements. However, most pregnant women can clearly sense fetal movement in the fourth to fifth month of pregnancy, because at this time the fetal activity is more frequent, the space for movement in the uterine cavity gradually decreases, the fetus can touch the abdominal wall of the pregnant woman when moving, so that they can sense fetal movement. Of course, if the pregnant woman herself is less sensitive, the fetus is smaller, not moving well, or the pregnant woman has thicker abdominal fat, the gestational week for sensing fetal movement may be delayed a bit. The change of pregnant women’s posture, emotional fluctuations and strong sound and light stimulation can cause changes in fetal movement, so it is recommended that pregnant women pay attention to the changes in fetal movement. Generally speaking, the period of active fetal movement is from 28 to 38 weeks of gestation, and then decreases slightly until delivery. The fetal movement in late pregnancy is the most direct manifestation of the state of the fetus in the uterus, so pregnant women must learn to count their own fetal movement, if there is a decrease in fetal movement or frequent fetal movement and other abnormalities, you need to consult a doctor to clarify the cause and then deal with it.