Controlling family members

My boyfriends family think that they are going to do whatever they want with my child. And it annoys me to no end. I’m due in just three short weeks and they’re acting like it’s an inconvenience to them because they’re taking a unnecessary trip to Florida because Disney is opening back up 🙄🙄 and Then they think they’re gonna come back and be all over my child. They don’t understand why I want to isolate my newborn for at least the first four weeks. They think it’s personally against them but it’s going to be my side of the family as well. My boyfriends grandma joked that people could see the baby from outside the window but acted offended at the thought of her doing the same thing as she makes weekly trips to Walmart and Costco. I don’t need people raising my child for me and I don’t know how to make that clear to them. Yes I’m a FTM but i don’t need to be told what to do or how to change a diaper ( like seriously?) I’m not stupid. Ugh