We recommend getting the Tdap vaccine in
your third trimester, and it’s actually for the baby and not for you. The earlier
you get it in your third trimester, the more protection the baby is
going to have against the whooping cough. Babies don’t get the whooping cough
vaccine until about three months after they’re born, and so for the first three
months of life the baby is at a much lower risk of getting the whooping cough
where they can become the most sick.