The cervical cancer vaccine is a three-shot program, and you can get pregnant after the third shot. Because there is no clear information on the effect of the cervical cancer vaccine on pregnancy, it is best not to get pregnant during the vaccination. If you get pregnant before the vaccine is finished, you should stop the injection and start the remaining vaccine after giving birth. The vaccine can be injected during breastfeeding and has no effect on the child’s milk intake. Therefore, as long as all three vaccinations have been completed, you can prepare for pregnancy at any time, and there is no effect on pregnancy.