Pregnancy belly big weight did not change may be the pregnant woman itself appeared to lose weight, but the fetus is developing. It is recommended that pregnant women pay attention to their diet during pregnancy. When pregnant women have a big belly but no change in weight during pregnancy, it is usually because the pregnant woman herself has the phenomenon of wasting, but the development of the fetus is better, so the fetus is growing but the weight of the pregnant woman does not change, so the pregnant woman has a big belly but no change in weight during pregnancy is a normal physiological phenomenon. It is recommended that pregnant women improve their diet during pregnancy and eat nutritious food, such as chicken, beef and lean meat, to ensure balanced nutritional intake. In addition, pregnant women should also ensure adequate rest, should not stay up late and overwork. During pregnancy, you should follow the doctor’s instructions to go to the hospital on time to check your body and the development of the fetus, and if you feel unwell, you should go to the hospital in time for examination and follow the doctor’s instructions to deal with the treatment.