Usually 4~5 months of pregnancy will begin to have a slight fetal movement, with the prolongation of pregnancy fetal movement will gradually strengthen, become more.
Fetal movement is a subjective feeling of the pregnant woman. Usually, fetal movement starts when the pregnancy reaches 4~5 months (16~20 weeks). Pregnant women may be aware of slight fetal movement in the abdomen. However, because fetal movement is affected by the amount of amniotic fluid in the pregnant woman, the degree of sensitivity, the thickness of the abdominal wall and other factors, so there is obvious individual variability in the exact time of perceiving fetal movement.
Fetal movements become stronger and more frequent as the pregnancy progresses. At around 24 weeks of pregnancy, there are about 86 movements every 12 hours; at 32 weeks of pregnancy, they reach a peak of about 132 movements every 12 hours. It peaks at 132 movements per 12 hours at 32 weeks of pregnancy, but gradually decreases after 38 weeks of pregnancy.
All in all, when a pregnant woman is delayed in the appearance of fetal movement, or there are frequent or reduced fetal movements, she should go to the hospital in time to consult a doctor.