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  • Diphtheria
  • Tdap and Pregnancy
  • Pertussis
  • Tdap and Pregnancy
  • Tetanus
  • Tdap and Pregnancy

At what gestational age of pregnancy should we vaccinate mothers with Tdap?

To maximize maternal antibody response and passive antibody transfer to the infant, the optimal time to administer Tdap is between 27 and 36 weeks’ gestation, preferably during the early part of that window. However, Tdap can be administered at any time during pregnancy.

Last reviewed: March 31, 2022

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