The fetus in the 8th month of pregnancy is usually around 2 kg, with a biparietal diameter of 8.2-8.5 cm and a length of about 42-46 cm. If the fetus is growing well and has adequate nutrition, it may weigh slightly more. If the pregnant woman’s diet is poor and the fetal growth is retarded, the fetus may also be slightly lighter in weight, so there are some differences in fetal development. The fetus in the 8th month of pregnancy can be normal as long as the pregnancy test indicators are normal, so there is no need to be too concerned about the weight of the fetus. If the fetus is too small, it may be malnourished. It is recommended that pregnant women strengthen their diet, eat more milk and meat, and use nutritional solutions under the guidance of doctors if necessary, which can promote fetal development. If the fetus is too big, it needs to control the diet properly. It is recommended to eat less snacks and sweets, and use more beans, corn and sweet potatoes as the main food. It is also necessary to exercise properly during pregnancy, such as walking, pregnancy yoga, etc., to avoid the fetus being too big. If the fetus is too big during pregnancy, it will bring risks to the delivery and increase the chances of cesarean delivery. Therefore, pregnant women should pay attention to maternity checkups and increase the number of maternity checkups appropriately. And pay attention to insist on weighing every day, if the weight is rising every week and is greater than 1 pound, you need to adjust your diet and activity level appropriately.