The 37th week of pregnancy the fetus has been full term, small one week belongs to the normal range, strengthen the nutritional supplement may have some effect. There are many reasons that lead to the late pregnancy of the fetus is small, first of all, verify the gestational week, may be in the pre-pregnancy itself there is irregular menstruation led to errors in the calculation of fetal gestational age, but also may be genetic and other factors that lead to the fetus itself is small and so on, you can try to supplement but is not necessarily useful, and 37 weeks of the fetus is small one week is within the normal range of the need to worry too much. If the pregnant woman’s nutritional intake during pregnancy is insufficient and other factors lead to the fetus is small, through timely supplementation of protein vitamins and other nutrients may have a certain effect. It is recommended that pregnant women should complete pregnancy tests and genetic screening in a timely manner during pregnancy, and under the guidance and advice of the doctor to have a good birth.