I had the TDap vaccine around 2 years ago after my son was born (at the time I was told I couldn't have it while pregnant). Now they are telling me I should get it again so baby will have some immunity to it. But I'm nervous to get it again - it's barely been 2 years. Anyone else's doctor recommend them to get it again if they've already had it? After ds was born everyone around him got the vaccine (me, dh and all grandparents) so everyone around baby will be protected.