don't demolish living quarters when anyone is pregnant. the kid needs the room they were ahem ed in for mommy to give birth.
What happens if there is no space in the Vault for another dweller? Does the woman get pregnant but doesn't give birth, or doesn't she get pregnant at all in that case?
Just like in real life..
Seriously though, what if you merge the living quarter or upgrade it?
Upgrade might not matter, but I don't know how the game handles merging because Room 1 might become room 10. If the Kid needs to spawn in Room 1 and there is no Room 1 then it won't happen because he would spawn in nowhere.