Jehovah witness medical beliefs

Amy • Met my hubby in 2011 we became great friends, started dating 10/14 and were married July 2015. Now we are a family of 3! 👶 Baby #2 on the way!

I am not a Jehovah witness, my grandma and Aunt are. I am having my baby in November and asking all who wish to be around have their Tdap shot, I know that Jehovah Witnesses have certain beliefs about medical things and I am just curious if I am going to offend them by asking them to get it. I just don't know if that's something that goes against what they believe. any help in that category would be helpful! I just don't want to make an uncomfortable situation with them.