1, choose the best time to conceive The best age for childbirth: 24 to 28 years old for women and 25 to 35 years old for men is the best age to complete the “kiss of life”, especially for women, preferably not more than 30 years old, especially not more than 35 years old. The best season for conception: Although there is no clear distinction between suitable and contraindicated seasons for pregnancy, from a comprehensive point of view, it is ideal to conceive in June to August each year and give birth in March to May next spring, or to conceive in January to February each year and give birth in October to November in autumn. The best time to conceive: A normal woman of childbearing age emits only one egg per menstrual cycle, and the period from 3 days before to 2 days after ovulation is the most fertile time for women. Optimal state of conception: Six months before the couple is ready to conceive, they should first rule out relevant influencing factors through preconception checkups and make adequate preconception preparations to keep their physical and emotional state in the best condition. After projecting the ovulation period, abstain from sex for 3 to 5 days before choosing to have intercourse. Too short or too long abstinence will affect the quantity and quality of sperm. 2.How to identify ovulation? Some couples stop contraception 2-3 months on the eager desire to realize the desire to be parents, have made full preparation, choose the time to get pregnant, but want to get pregnant and can not conceive. In fact, the common reason is that they have missed the “fertile period”. (1) Date projection method: Most women with regular menstrual cycles can choose this method, in which 14 days before the expected next menstrual period is the day of ovulation. However, since ovulation can be altered by illness, emotions, environment and medications, it is best to use it in combination with other methods. (2) Basal body temperature measurement method: Basal body temperature is the temperature generated by the energy consumed to maintain the most basic life activities of the body, and the basal body temperature of women changes periodically with the hormonal changes in the body. “Ovulation usually occurs during the process of rising from low to high basal body temperature. Ovulation usually occurs during the rise of basal body temperature from low to high. The measurement should be taken after at least 4 hours of sufficient sleep and before any activity after waking up, and should be recorded daily. However, this method is not suitable for all women because the accuracy of the measurement is often affected by poor sleep quality, irregularity or changes in ambient temperature. And the judgment of the results requires certain experience and skills, so it can also only be used as one of the reference methods for projection. (3) Cervical mucus observation method: Under normal circumstances, when a woman is close to ovulation, her cervical mucus will become clear, smooth and elastic, and there will be an increase in egg-white-like leucorrhea, with a high degree of stretching and not easily broken. (4) Ovulation test paper prediction method: According to the respective menstrual cycle and some of the above methods, you can choose to start testing close to the ovulation period, once a day, and observe the L-peak. Ovulation usually occurs 18 to 36 hours after the appearance of the L peak. The method of detection is similar to the method of early pregnancy test strips commonly used by everyone, which can predict ovulation relatively more accurately. (5) Others: The most accurate method is to seek the help of a specialist who will provide you with information on the most likely time to conceive by combining the above methods or through ultrasound monitoring. 3, pre-conception contraceptive method selection principle: the future of reproductive function is small, not easy to occur infection, simple and convenient method. The best choice of methods: male (or female) condoms, because it is safe, reliable and easy to use. Reference methods: short-acting oral contraceptive pills, external spermicide, vaginal ring, safe period plus barrier contraceptive method, etc. These methods are relatively safe, have less impact on future fertility, and recover quickly after stopping the pill. Emergency contraception can be used when necessary, but should not be used more than once. Methods that should not be used: Long-acting contraceptives, IUDs, etc., have a greater impact on reproductive function and have a longer recovery period. The failure rate of safety-period contraceptive methods is high, especially for newlyweds, try not to use them. Try not to get pregnant within six months after the newlywed, sitting on the bed happy is not happy on happy; implement the appropriate contraceptive measures for yourself on the basis of informed choice to avoid unintended pregnancy, not to mention the first child easily go for abortion.