In laws moving in

So basically my husband has decided to bring it upon himself to invite his parents to live us in our new place. He didn't ask me if I was okay with it or ask my opinion. He just did it. Our new place is a 3 bedroom and the master is of course ours but his sister is also coming. He said the baby can be in our room so that leaves my in laws in one room my sister in law in another and me my husband and the baby in the other room. So the baby doesn't get his nursery. Am I wrong to be pissed?