1. Pregnancy time Pregnancy time includes two main aspects: the best age for those preparing for pregnancy and the best time to get pregnant. Experts believe that the best age for women to give birth is between 23-28 years old. This is the period when a woman’s whole body is fully developed and mature, her eggs are of high quality, and if she carries a child to term, she will have fewer female complications, less risk of delivery, good fetal growth and development, and the lowest incidence of premature births, malformed children and demented children. It is generally believed that the best season for pregnancy is late spring or early autumn, i.e. March-April or September-October. This is the time when there is less environmental pollution and more seasonal fruits and vegetables. Therefore, it is most appropriate to get pregnant at this stage. 2, pregnancy diet For women, it is best to stop smoking and drinking, and eat less spicy and high-sugar food. It is best for those who are preparing for pregnancy to have a full body checkup a year before, to check whether the nutritional elements are balanced in all aspects, and to take good care of their teeth to ensure that there are no dental lesions for a healthy diet, and they can have their teeth cleaned once a month in advance. For men, it is important to have a varied diet before pregnancy and not to be partial, so that you can ensure the intake of sufficient nutrients. Eat less ham, sausages, salted meat, pickled fish, pickled vegetables, and do not eat smoked foods such as lamb kebabs. Eat less canned food and drink less beverages. Wash vegetables to pay attention to the immersion method to remove residual pesticides, but also to give up the habit of smoking and drinking alcohol. The diet pay attention to zinc and selenium supplementation, can improve sperm quality. 3, pay attention to exercise For women, proper exercise can not only improve their physical quality, but also improve the quality of eggs. The woman’s strength is small and her endurance is relatively poor, but her flexibility and agility are strong, so it is advisable to choose aerobics, swimming, jogging, picnics and other sports that require less physical strength. This type of exercise has a very good effect on maintaining the beauty of women’s body shape. At the same time, aerobics, swimming, jogging, excursions, etc. are all full-body exercises and have considerable exercise intensity, which can consume excess body fat and is conducive to physical beauty and muscle development. For men, obesity is the biggest obstacle to pregnancy. For the obese pregnant demand party, men had better choose 1-2 exercise methods suitable for their bodies six months before deciding to get pregnant, in order to enhance heart function, make heart muscle thicker, muscle fiber more plump, heart contraction more powerful, improve blood vessel function and improve microcirculation function. 4.Supplementation of folic acid Folic acid can effectively prevent neural tube malformation. Pregnant people should start to take sufficient amount of folic acid at least 3 months before pregnancy, and the folic acid deficiency in the body can be improved after taking folic acid for 4 weeks. Foods rich in folic acid include animal liver, dark green vegetables and legumes or a daily supplement of 400 micrograms of folic acid, which can be taken throughout pregnancy to prevent 70% of the risk of neural tube abnormalities in fetal babies and to reduce the risk of hyperlipidemia in pregnancy. In addition, men who are preparing for pregnancy should also take folic acid or Yuzhishan tablets, which will reduce the risk factor of sperm by 20-30%. Eat more green leafy vegetables, fruits and legumes during the day. For husbands with unsatisfactory sperm quality, they need to take more zinc and selenium supplements and protein. 5, quit bad habits For couples who have bad habits such as drinking alcohol and smoking, are not conducive to pregnancy. Experts suggest that because sperm has a growth cycle of about 90 days, men who want to get pregnant successfully should prepare for pregnancy at least three months to six months in advance. There is a long enough time to shoot out the sperms in the body that are affected by smoking and alcohol. In addition, smoking is more harmful to women than men, causing ectopic pregnancy, infertility, dysmenorrhea, early menopause, osteoporosis, urinary incontinence, gynecological tumors and other diseases, and more seriously, affecting fetal development. Therefore, pregnant mothers should quit smoking and drinking before they get pregnant.