husband needs tdap vaccine?

B

We are due in about 2.5 weeks and for some reason my husband refuses to get his tdap vaccination. Primarily out of laziness. It's really annoying me. All of the grandparents got their vaccinations, yet the father of the child keeps saying "I'm sure I'm up to date." he works in close quarters with a lot of athletes, which I feel makes it even more important. Anyone have any good talking points I can use to do this in way that gets him to get the vaccination? I'm starting to come off as a nag which is making him more upset. I currently don't have the emotional capacity to deal with unnecessary arguments.