Regular condom use by men generally has no effect on subsequent pregnancies. However, condom use is not recommended during pregnancy preparation, which requires the man to ejaculate into the woman’s vagina in order to achieve pregnancy. For couples who are not planning to have children, the use of condoms is a simple and effective form of contraception that does not affect the male’s semen. The success of pregnancy depends, more often than not, on the quality of the male semen, as well as the ovarian function and uterine condition of the woman. Men can have a routine semen examination with 3-5 days of abstinence to know the semen volume, liquefaction time, density, vitality and morphology of sperm, etc. If necessary, the semen can also be checked for leukocytes, mycoplasma, chlamydia, bacterial infection, etc. Through these indicators, the quality of male semen, as well as fertility, can be assessed. Regular use of condoms does not affect subsequent pregnancy.