Medical experts believe that the best time to get pregnant is the period from the beginning of June to the end of August, almost three months. Considering the living and geographical conditions in most areas of our country, August and September are more ideal for pregnancy. This is because from the medical point of view, there are three critical periods for embryonic development: first, the brain formation period, which is the third month of conception; second, the brain cell division period, which is after the sixth month of conception; and third, the nerve cell development and coordination period, which is the seventh to ninth month of conception. If you choose to conceive between August and September, the third and sixth months of pregnancy and delivery are in the late autumn and mid-spring seasons when the climate is favorable and nutrition is easy to deploy, the fetal nervous system can be well developed. Scientists have studied the 10,832 famous British people listed in the Encyclopedia Britannica and the famous people listed in the American Science People and found that the percentage of famous people born during the above three months is higher. This is mainly related to the time of conception and the nutrition of the diet during conception. We know that when the pregnancy reaction occurs in the first 40-60 days of pregnancy, it happens to be in August, September or October, most pregnant women have poor appetite and love to be picky eaters, but at this time there is a wide variety of vegetables, fruits and melons, which can be regulated to enhance appetite and protect the nutritional needs of the fetus. Two or three months later is in late autumn, the climate is cool, the appetite of pregnant women gradually increased, very favorable to the growth and development of the fetus. At this time, there is enough sunshine, pregnant women often sunbathe, the body can produce a lot of vitamin D, promote calcium, phosphorus absorption, help the fetal bone growth. And August and September between the summer and autumn, pregnant women sleep at night by the heat of the small, pregnant women’s rest, nutrition and intake of various vitamins are more adequate, are conducive to the development of the fetal brain and the development of intelligence after birth. When the cold winter and the first warm and cold early spring come with influenza, rubella, influenza and other viruses, the fetus is more than 3 months old and has safely passed the teratogenic sensitive period. Moreover, the corresponding due date is around May of the following year. The time of delivery is the end of spring and the beginning of summer, the temperature is suitable, the mother breastfeeding, baby bathing are not easy to catch cold, vegetables, fish, eggs and other food supply is also very rich, the pregnant woman appetite is good, milk is also rich in nutrition, is the best season of “sitting in the moon”. When the child is half a year old, it is in the golden autumn and October, and when it is time to increase complementary foods, the epidemic season of intestinal diseases such as pediatric enteritis in summer is successfully avoided. When the child learns to walk and begins to wean, it is the turn of spring and summer, when the climate is mild and fresh food is plentiful, providing favorable conditions for the child’s growth and development.