The hepatitis B vaccine does not affect the health of the fetus, so a man can have a normal pregnancy with his partner after receiving the vaccine. For women, if they are preparing for pregnancy, it is recommended to use the accelerated process of hepatitis B vaccination, i.e., the 0-1-2 protocol, in which the second dose is given one month after the first dose of hepatitis B vaccine. The third dose should be given 1 month apart. Because once pregnant, the hepatitis B vaccine cannot be given during pregnancy, so if the three-dose process is not completed, the amount of antibodies produced will be insufficient, affecting the protective effect. However, men can get the hepatitis B vaccine normally, and they can have their hepatitis B test 1-2 months after the third injection to see if antibodies have been produced.