There is no definite time limit for pregnancy after vaccination, but if there is a need for pregnancy, it is recommended to get pregnant three months after vaccination. The new crown vaccine is an inactivated vaccine, which means that the new crown virus is first cultured and then inactivated and then inoculated. The inoculated person will have a certain immune response, and the concentration of antibodies in the body will decrease over time, and the inactivated vaccine has not yet been found to have too much of an effect on pregnant women and fetuses. The NCDC points out that there is no need to postpone pregnancy plans after receiving the new crown vaccine. Scientifically speaking, women can prepare for pregnancy at any time after receiving the inactivated vaccine, except that in order to alleviate the tension and anxiety, men and women with fertility plans can prepare for pregnancy after three months. If pregnancy is detected after vaccination, there is no need to be overly nervous and do a proper pregnancy check.