The short duration of male sexual activity does not affect pregnancy, as long as the male’s semen is in a healthy state and he is able to complete the ejaculation action, allowing the semen to enter the woman’s vagina. Pregnancy is only related to the quality of semen, that is, whether the number of sperm is normal, whether there are deformities in the sperm, whether there is an increase in the rate of dead sperm, or whether there are anti-sperm antibodies, etc. It has nothing to do with the length of the male’s sexual activity. As long as the normal sexual process can be completed, the semen can enter the vagina of the woman, and the quality of semen is normal, pregnancy is possible. If a man is short of time, the semen cannot be ejaculated into the vagina or outside the body before or during the contact, it will affect the pregnancy of the patient. In principle, sexual activity lasting more than 1 minute, normal ejaculation and normal semen quality will not affect pregnancy. If the ejaculation time is less than 1 minute, it is possible that the semen does not enter the vagina of the woman completely, which may affect pregnancy to some extent.