Fetal movement cannot usually be felt at 13 weeks of pregnancy.
Fetal movement refers to fetal somatic activity, which is one of the clinical manifestations in the middle and late stages of pregnancy. Pregnant women can often be conscious of fetal movement before and after 20 weeks of pregnancy, and with the progress of pregnancy, fetal movement is gradually enhanced until 32 to 34 weeks to reach the peak, and then gradually reduced after 38 weeks. At 13 weeks of gestation in the early stages of pregnancy, generally not conscious of fetal movement.
Generally in the night and afternoon fetal movement is more active, lasting about 20 ~ 40 minutes, in the fetal sleep cycle fetal movement disappeared. After 28 weeks of gestation, the number of fetal movements is normally not less than 10 times/2 hours.
Fetal movement monitoring is a simple, economical and effective method for pregnant women to self-evaluate the intrauterine condition of the fetus, and a decrease in fetal movement suggests that there may be fetal hypoxia.