Would you let someone that just got back from a trip and was in airports come visit your newborn in the hospital or make them wait?

I’m Due next Friday for my scheduled c section at 36 weeks with our first boy. My first daughter was a preemie born at 26 weeks, and my second daughter was a scheduled c section at 37 weeks. With our first daughter my mother in law kept trying to go to the Nicu to see her when she was born before me, after having an emergency c section, but the nurses didn’t let her. Then with our second daughter, she showed up unannounced right after going through my c section when I just wanted to be able to spend time with our baby alone since I never got that experience with our first. And now I’m afraid of the same thing happening this Friday it’s giving me so much anxiety. She has no boundaries and only thinks about herself. I do have some ptsd from going through the Nicu for 5 months with our first daughter and how sick she was. My mother in law is gone on a work trip right now and called my husband last week asking when my c section was and she told him that she flies back home that same day. This is our last baby and I just don’t want any visitors at the hospital and to be able to be alone with him and bond with him. She knew with our last we didn’t want visitors but she did not respect that and showed up anyways. Especially after her going on a work trip this week and being through airports with all this sickness going around I really don’t want him to be catching anything. What would you do if this were you? She’s also the type that will kiss baby even if you tell her not to. I just don’t know what to do. Then I wonder if I should just let her come see him at the hospital so she doesn’t try coming to our house and staying for hours when we’re finally home.