Setting up guidelines with family.

I want to set up rules or guidelines for my family to follow while I’m delivering and after I have my son. I’m being super cautious and making everyone get a pertussis booster that’s going to be around him until he starts his shots. I also don’t want people showing up at the hospital or my home unannounced. How would you go about telling this to your family and friends? I was going to post of Facebook and send a group message out but I have no idea how to word it for it to not seem like I’m a dictator over them seeing my baby..