Additional boosters of Tdap are also recommended for Pregnant women during each pregnancy (preferably at 27 to 36 weeks gestation), regardless of the interval since any previous dose of Tdap Postpartum women who have never received Tdap Adults who require a tetanus toxoid - containing vaccine as part of wound management and who have not previously received Tdap are given Tdap instead of tetanus-diphtheria (Td).