The fetus is generally above 4 pounds at 34 weeks of pregnancy, and there is a great difference in weight, which is related to the fetus’ own nutrient absorption, as well as the pregnant woman’s diet. The fetus will gain weight faster in late pregnancy, and if you eat too much sugary food at this time, or if you have diabetes, the fetus may be heavier; then there is a relationship between the fetus’ bone length, muscle development and genetics. To estimate the weight of the fetus, it can be estimated by measuring the abdominal circumference and uterine height of the pregnant woman; it can also be determined by ultrasound examination to measure the biparietal diameter, femur length, abdominal circumference and other comprehensive judgments. The accuracy of ultrasonography is more accurate than that of uterine height and abdominal circumference. If you find that your baby’s weight is not estimated or exceeds the standard during this period, it is better to correct the diet structure and match it reasonably, if necessary, under the guidance of a doctor to avoid affecting the baby’s growth and development, resulting in low weight babies or huge babies. It is also important to eat more fresh vegetables, fruits, lean meat, etc., observe fetal movement closely, and exercise properly to help the fetus grow and develop. Try to avoid going to crowded places to avoid catching a cold. At 34 weeks, you need to have a checkup once every two weeks, and deal with any abnormalities in time.