Under normal circumstances, fetal movement can be perceived in the 18-20 weeks of fetal movement, different people will have some differences, primigravida and menstruating mothers may also have a different time. 1. primigravida: for primigravida, because the first pregnancy is still inexperienced, and the baby’s gestational period is small, the amplitude of fetal movement is not big, generally speaking, most of the primigravida after 18 weeks of pregnancy can slowly feel the baby’s fetal movement. 2. experienced women: experienced women because they have given birth to a baby, for the baby’s fetal movement will be more sensitive, easier to detect, so most of the experienced women in the 16 weeks of pregnancy after the baby’s fetal movement can be felt. If the abdominal wall fat thicker pregnant women, fetal movement may be perceived later, when pregnant women feel fetal movement, usually pay attention to more observation of the baby’s fetal movement, when the baby’s fetal movement suddenly become frequent or significantly reduced, pay attention to rule out the possibility of intrauterine fetal hypoxia. Pregnant women should pay attention to regular checkups, if at any time there is special discomfort to seek medical attention as soon as possible.