Early fetal movements are usually sensations such as slight sliding or writhing. Early fetal movement refers to the first fetal movements felt early in pregnancy, usually between 16 and 20 weeks of pregnancy. Because the fetus is small, the movements are weak and not easily perceived because they are separated by amniotic fluid, uterine muscle and abdominal cushioning. As the fetus develops, the strength of fetal movement can gradually increase, and fetal movement becomes more and more obvious. Especially when the fetus is turning over, twisting and other large movements, the pregnant woman’s feeling may be more obvious. If you find that the fetal movement is obviously frequent or reduced, you need to go to the hospital in time, under the guidance of the doctor to carry out fetal heart monitoring, to determine whether the lack of oxygen, to avoid serious consequences.