The baby may be hearing music or outside sounds or turning over. As long as the number of fetal movements is normal and the fetal heart is normal, the fetus is generally normal, some may be the sensitivity of the pregnant woman to fetal movements or the thickness of the pregnant woman’s abdominal fat, so the feeling is different. The fetal movement is the movement of the fetus in the mother’s uterine cavity when impacting the uterine wall, most of the fetal movement can be felt in the fifth month of pregnancy, and some menstruating mothers may be able to feel the fetal movement at about 16 weeks. The intensity of each baby’s fetal movement is different, or different ways of activity in the mother’s body, the pregnant woman will have different feelings, trembling fetal movement is also a kind of fetal movement, because the fetus in the mother’s body, such as yawning, turning over, turning around, touching their face, different ways of activity, the pregnant woman will have different feelings, and different stages of pregnancy, the pregnant woman will feel different fetal movement, such as late pregnancy, the uterus space is smaller, fetal movement may be different. For example, if the uterus is smaller in late pregnancy, the fetal movement may be different. In short, trembling fetal movement is also a kind of fetal movement, regular maternity checks, do not worry. If the number of fetal movements is too much or too little, you should go to the hospital in time.