How many days will the fetal movement be strong and weak?

Fetal movement strong a few days and weak a few days is mainly related to the fetal pregnancy time and fetal position, fetal development, general fetal movement in the middle of pregnancy is the strongest, especially from 15 weeks to 20 weeks of pregnancy, to 7-9 months can reach the maximum value, and 7:00 p.m. to 9:00 p.m., the other is from 11:00 p.m. to early morning, this stage of fetal movement frequency is the highest. Fetal movement strength can reflect the fetal development in the mother, if the fetus shows fetal maladjustment, poor breathing and improper maternal sitting performance will cause fetal movement to become stronger.