Newborns and puppies?


I expect to have a 2 week old along with a house full of family for Christmas. My mom seems to think I should offer my sister to bring her brand new puppy with her while they stay the night at our house. Is it wrong to be appalled by her request? I think it's going to be hard enough on me to have a newborn, let alone a house full of guests, now she wants to add a puppy who I have no idea how they will act around kids?! I just know if it were me and my dog I would never have any expectation to bring a puppy around a newborn! My response to her was that my sister hasn't asked me so I am not going to just offer it. I'm sure it's going to come up at thanksgiving. I need some good reasons on my side of why this isn't going to happen!