The fetus can be made up for one week by eating a reasonable diet and strengthening nutrition. In the middle and late stages of pregnancy, due to the different functions of the placenta and the different nutritional intake of pregnant women, it is normal that there is a difference of about one week between the fetal development and the actual gestational week, so there is no need to worry too much. Fetal small one week general reasonable tonic, strengthen the nutrition can be. It is recommended that pregnant women should eat more food rich in high protein, such as lean meat, milk products, eggs, soy products and fish, shrimp and other foods, with the intake of a variety of fresh vegetables and fruits, appropriate supplementation of high-quality fats, such as peanuts, pistachios or hazelnuts and other nuts, as well as a variety of rice, pasta, grains and other high-quality carbohydrates. To achieve a balanced nutritional diet of three meals, do not eat monolithic food, not picky about food, etc.. In addition to diet, pregnant women should also supplement calcium, reasonable rest, avoid staying up too late and too nervous. Generally after a reasonable dietary supplementation of nutrition after the fetus will be complementary, pay attention to do a good job of obstetric examination can be.