China’s marriage law provides that a man who has reached the age of 22 and a woman who has reached the age of 20 can legally register for marriage, and a man who has reached the age of twenty-five or a woman who has reached the age of twenty-three when she first marries is a late marriage. If a woman reaches the age of twenty-four and gives birth for the first time, or if a woman reaches the age of twenty-three and becomes pregnant after marriage, she is considered to have given birth late. Due to the current situation of overpopulation in China, the state advocates late marriage and late childbirth while strictly implementing family planning, but ignores the negative effects of late marriage and childbirth, and does not pay attention to publicizing the dangers of advanced maternity, leading the public to even think that the later the marriage and the later the childbirth the more the state advocates. In fact, from a physiological point of view, it is best for a woman to complete her first childbirth within 15 years after her menarche, the general age of menarche 11-16 years old, so 25-30 years old is the best physiological age for childbirth, at this time, all systems of the body are the healthiest state, the reproductive system is fully prepared for the conception of new life, regardless of the quality of eggs and ovulation patterns, or uterus This is the best time to get pregnant, and the success rate is undoubtedly higher and the risk of pregnancy is relatively low. After the age of 35, a woman’s ability to conceive decreases significantly due to the aging of her egg cells and the lower quality of her eggs, which significantly increases the chances of pregnancy and the risk of pregnancy, as well as the risk of having an abnormal fetus. The medical term for this is the “folding stick phenomenon”. For men, there is no clear biological age of fertility as there is for women, and newspapers are full of stories about children from 12-13 years old to grandfathers in their 70s. However, in general, fertility is higher from the age of maturity of the secondary sexual characteristics (around 16 years old) to 35 years old. Some semen screening studies have shown a significant decrease in male semen viability and an increase in malformed sperm after the age of 35. Many people still want to know what season or even what month is the best to get pregnant, in fact, medically speaking, in today’s material life has been greatly improved, the climate and material supply problems affecting pregnancy are not difficult to solve, so there is no absolute inappropriate season for pregnancy. It is generally believed that the best season to get pregnant is autumn (July-September). Because most of the mothers-to-be have poor appetite and are prone to picky eating, autumn is the time when there is a wide variety of vegetables, fruits and melons. Not only can it enhance the appetite of the mother-to-be, but also ensure the nutritional needs of the baby, which is conducive to the healthy growth of the fetus. What’s more, during the coming April-June delivery, the temperature is more suitable, the baby can avoid the hot summer and cold winter, the care of the baby is also the easiest, the baby does not need to wear too many clothes, limbs can move freely, which is beneficial to the baby’s brain and the development of the whole body. It also makes the mother and baby less prone to infectious diseases. The supply of various vegetables and side foods is also very abundant, which can well regulate the mother’s appetite and can promote the secretion of milk and the recovery of the mother’s body, making it the best season to sit for the menstruation. In addition, spring is also considered to be the best season for pregnancy. Spring is generally described as the season of sowing seeds, and some surveys show that the most fetuses born are conceived in spring. As for some superstitions that say what time pregnancy is sure to give birth to a boy or a girl, these are not based on any scientific basis, the process of conception is the process of sperm-egg union, in this first fierce competition in life, hundreds of millions of X sperm and Y sperm in a fair “race”, if the Y sperm first into the egg then the birth of the fetus is If the Y sperm is the first to enter the egg, then the baby is born as a little male, if the X sperm is victorious, then the baby is born as a little gold, the sex ratio in the natural born fetus is about 1.05:1, that is a result of natural selection. Because male fetuses are more vulnerable than females in the early stages of life, by the time they reach adulthood, the ratio of males to females is almost equal. Nature maintains the gender balance by “ordering” more boys in advance. There is also a folk saying that dragon babies have good fortune, so in order to rush in a special year or a special zodiac birth, newlyweds often flock to the birth of a baby, the result is often counterproductive, making these babies from birth in a more competitive environment, such as a few years ago, the “millennium baby”, ushered in the birth of the peak For example, the “millennial” babies of the last few years have seen a surge in births. The maternity wards of major hospitals are overcrowded; millennial babies grow up together and study together, resulting in the first two years of schooling, can meet in the future this group of “millennial babies” also have to compete for college entrance exams, competition for employment. Therefore, all the unexpectant mothers and fathers want to rush to create a special baby for a good fortune, must think twice! In addition to physical and physiological preparation, psychologically well-prepared, stable work, happy mood, good relationship between husband and wife, family harmony certainly has a positive meaning to pregnancy, so prepare to have a healthy baby, first prepare these environments. Try to avoid conception after drinking, after smoking and during medication, or when you are physically exhausted and emotionally depressed. If you conceive when you are not in a good relationship or family harmony, it will not only be bad for the mother’s preparation but also for the baby’s healthy growth in the future. Therefore, there is no unified answer to the question of “when is the best time to get pregnant”, but only some guiding medical advice, and it is best for both mothers and fathers-to-be to make a decision based on their actual situation and after full consideration. The parents-to-be must pay attention to their health, work environment and emotional state when preparing for a baby, and it is best to schedule the pregnancy at a time when work or study is not stressful.