Most of the 7 months of pregnancy weight does not grow is normal, because some women in early pregnancy due to nausea, vomiting situation is more serious, may appear weight loss symptoms, many women often can not eat, early pregnancy weight may be reduced 8-10 pounds, in late pregnancy appetite better weight relatively increased. Therefore, compare the problem of constant weight before pregnancy may occur, do not worry too much as long as the fetus is healthy, and there is no fetal small or fetal dysplasia and other kinds of problems, you can do without treatment. It is best not to eat too greasy and high sugar food in the second trimester of pregnancy to avoid obesity problems.