Generally, vaccines that contain killed (inactivated) viruses can be given during pregnancy. Vaccines that contain live attenuated viruses are not recommended for pregnant women.
Two vaccines are routinely recommended during pregnancy:
Influenza vaccine: Pregnant women are at higher risks of developing severe complications from influenza than women who are not pregnant because of changes in the immune system during pregnancy. The influenza vaccine is made from an inactivated virus, so it is safe for both the mother and the baby. Pregnant mothers should avoid the influenza nasal spray vaccine, which is made from a live attenuated virus. The influenza vaccine can be administered at any time during pregnancy, before and during the influenza season.