1, sexual life should not be too frequent. The frequency of the couple’s sexual life is too high, which will lead to a reduction in the amount of semen and sperm density, sperm in the case of not fully developed and mature, and the egg meeting “strength” is greatly reduced, the chance of conception will naturally be reduced. For women who are prone to specific immune reactions, frequent exposure to their husband’s semen can easily trigger the production of anti-sperm antibodies in the body, causing sperm adhesion to accumulate or blocking their movement, resulting in failure to combine with the egg. Therefore, the preparation time is relatively long, sexual life too often has not been pregnant couples, can temporarily stop a period of sexual life, or use condoms for about 3 months. 2, the sex life position has to be careful. The best position for women to conceive is male on female, which can make the sperm deeper inside the uterus; at the same time, the earth’s gravity can be used to extend the retention of semen in the vagina, so that the sperm have more opportunities to reach the uterus faster. After a man ejaculates, it is best for a woman to lie on her back with her hips elevated for 15 to 30 minutes. Another best position is to lie on your side with your knees bent as far as possible toward your stomach. 3, fully enjoy sex. Studies have found that women who enjoy orgasms during sex are more likely to get pregnant than women who just lie there and do their duty. 4, men abstain from sex for a specific length of time. In the case of different lengths of abstinence from sex, the differences in sperm concentration, health chances and activity are considerable: the highest point of sperm concentration appears after 1 day of abstinence, and then starts to go down rapidly; the highest point of sperm activity also appears after 1 day of abstinence, and then slowly declines; the highest point of sperm health chances is reached within 1D2 days after abstinence; its activity after 1 day of abstinence The sperm will start to increase after 1 day of abstinence and remain active for about 7 days. 5. Proper nutrition. Nutritional supplementation is also very important during the preparation period. Women should start taking folic acid supplements at least 3 months in advance when they plan to get pregnant, which can effectively prevent malformations in newborns. Men should also take nutritional supplements before conception, men should eat more food rich in zinc, calcium and vitamin D can also help improve male fertility. 6.Grab the best time to conceive. Generally speaking, women are most likely to conceive in the two or three days before and after ovulation. For women with a 28-day menstrual cycle, ovulation should occur on the 14th day of the menstrual cycle (counting from the first day of the incoming period), and ovulation is most likely to occur on the 11th to 15th day of the menstrual cycle. If the menstrual cycle is 30 or 32 days, ovulation may occur on the 16th or 18th day of the menstrual cycle. This method of projection, however, is less applicable to women with irregular menstrual cycles, and this is where the changes in basal body temperature and vaginal discharge during the menstrual cycle can be used to help understand the date of ovulation. First, the basal body temperature can increase by about 0.5°C during ovulation, and the date of ovulation can be understood by analyzing the temperature curve. Secondly, during ovulation, under the influence of estrogen secreted by the ovaries, the cervical opening is relaxed, the amount of cervical mucus, i.e. leucorrhea, is increased, pH is alkaline, the quality is thin, the water content reaches 95%~98%, the mucus is transparent and clear, the degree of drawing is enhanced up to about 10 cm, all this is conducive to sperm penetrating the cervix to the uterine cavity, which lasts 2~3 days, this ovulation period is the most fertile time for women, which is also the “conception period”. Scientific experiments have proven that the egg has the strongest fertilization ability within 12 hours after ovulation, and still has the ability to fertilize within 15~18 hours, and beyond 24 hours, the egg basically loses its fertilization ability. In short, the completion of fertilization needs to be within 24 hours after ovulation, and sex must occur around the time of ovulation. Under normal circumstances, several hundred million sperm enter the vagina during each ejaculation, and then have to pass through about 20 cm of the reproductive tract before reaching the abdomen of the fallopian tube. However, less than one in a million sperm can successfully pass through this section, and no more than 200 sperm can eventually reach the abdomen of the fallopian tube, and most of the rest are lost and die during the process of passing through the female reproductive tract. Generally speaking, it is believed that the possibility of conception is possible during the period of 1 to 2 days before ovulation and 1 day after ovulation. However, I personally believe that the highest conception rate is achieved during the preovulatory period.