The fetal head position may change at 29 weeks of gestation, for example, if the fetus is smaller or if the mother has more amniotic fluid. Usually the fetus grows significantly from 32 weeks of gestation, and as the fetus’ body develops, its length will gradually increase and its body will gradually curl up. The amniotic fluid in the uterine cavity will gradually decrease in late pregnancy, so the space in the uterus will be a little crowded for the fetus and it will not be easy to move around. The fetal position is basically fixed at this time, with the head position being the most common and usually does not change. However, as long as the fetus is not in the pelvis and can still move around in the uterine cavity, there is a possibility of changing the head position. Therefore, if the pregnant woman has more amniotic fluid, the abdominal wall is looser and the fetus is smaller, there is still room for movement. If the fetus does not show any abnormalities, pregnant women do not need to worry too much about whether the fetal head position will change and thus affect the growth and development of the fetus, as long as the maternity checkups are conducted regularly. If the fetal head position is found to be incorrect during the maternity checkup, the head position can be adjusted through professional means under the guidance of the doctor. In daily life, pregnant women should pay attention to nutrition, but avoid eating too much high-fat and high-sugar food, so as not to cause the fetus too large for delivery.