The third dose of the new coronavirus vaccine does not affect the preparation for pregnancy, but if you are concerned, it is recommended that you wait 3 months before getting pregnant. According to the “Technical Guidelines for Neocoronavirus Vaccination (First Edition)”, women who are planning to get pregnant do not have to delay their pregnancy plan just because of the Neocoronavirus vaccination. Men also do not have to delay pregnancy planning due to vaccination. In the case of groups undergoing assisted reproduction therapy, it is recommended that the immune response to the vaccine be stabilized for one month before initiating assisted reproduction therapy. In addition, it is recommended that breastfeeding women who are at high risk of neocoronavirus infection (e.g., healthcare workers) should receive the vaccine and be able to breastfeed after vaccination; women who are pregnant need to avoid vaccination. If pregnancy is detected after vaccination, it is recommended that pregnancy checkups and follow-up visits be done, and the rest of the vaccination should be carried out after delivery. Therefore, the vaccination does not affect the preparation for pregnancy, but those who are more worried can choose to prepare for pregnancy after 3 months.