There is not enough evidence to show that the New Crown vaccination affects the preparation of boys for pregnancy. The most abundant ingredient in the vaccine is the antigen used to induce the body to produce the appropriate antibodies. In addition, the vaccine contains other ingredients: saline or distilled water to dilute the vaccine to the appropriate concentration; chemical adjuvants to enhance the immunity of the vaccine; gelatin to ensure the safety and efficacy of the vaccine under different conditions and temperatures; and preservatives to prevent the growth of bacteria, etc. The vaccine has been clinically proven to have no toxic effects on men. All of the above vaccine ingredients have been clinically proven to have no toxic side effects on humans. There is no clear evidence that the New Crown vaccine affects sperm in preparation for pregnancy and thus affects the fetus. In case of pregnancy after vaccination or in case of unknown pregnancy, based on the understanding of the safety of the above vaccines, special medical measures (e.g., termination of pregnancy) are not recommended solely because of NeoCornavirus vaccination, and proper pregnancy checkups and follow-up visits are recommended. For women who are planning to conceive, there is no need to delay pregnancy planning solely because of the new coronavirus vaccination.