The choice of sexual life time is in the hands of each couple. When to have sexual life should be determined according to both parties’ work and study arrangements, physical, energy, and mood conditions, as well as sexual life habits and preferences. For example, people with weak sexual function choose to make up for their weaknesses in the early morning; people who work hard choose to maintain strong work energy before going to bed. In short, there is no fixed time for sex. As long as both husband and wife agree and like it, and it does not affect each other's work and study the next day, no matter what time you choose, it is appropriate. There is no need to force it. The time of sexual intercourse is not important, but if you want to get pregnant smoothly, you must pay attention to the characteristics of sexual intercourse. During sexual intercourse, men first excite the central nervous system, causing the corpus cavernosum to become congested and erect. When a certain level of stimulation is reached through friction, ejaculation occurs. It is generally believed that there are seven powerful rhythmic contractions in the ejaculation process. We can artificially divide the ejaculation process into two stages. The segmented ejaculation method has great clinical significance in the treatment of male infertility. If the patient's sperm count and motility rate are low, or if the semen is too viscous and the amount of semen is excessive, the segmented ejaculation method can be used during sexual intercourse during the woman's ovulation period. When the first section of semen is ejaculated, immediately pull the penis out of the vagina so that the rest of the semen can be ejected outside. This can prevent the seminal vesicle secretions from diluting the semen and ensure that high-density, high-quality, and high-motility sperm remain in the vagina. , improve the ability to conceive. In the practice of "artificial insemination" and "in vitro fertilization", segmented ejaculation has also become a routine step. After the first section of semen is processed, high-motility sperm are screened out and sent to the uterus or used for in vitro fertilization. This examination method can also be used to study the physiological activities during ejaculation. Some people have disorders in the ejaculation process due to neurological problems. The sperm is not ejected mainly with the prostate fluid, but with the seminal vesicle fluid. The sperm activity is lower than normal, which may also be a reason for infertility.

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