I loved my brother's response in this situation. He and his wife had gotten married, then bought a house and got a rescue pup. When Lady had been in residence for several months (okay, takes about 10 minutes for any family member of mine to completely fall in love with a pet), his wife became pregnant. One of Jenny's friends asked my brother, "So you guys are gonna have a baby, are you gonna get rid of the dog now?"
My brother, bless him, said, "Are you crazy???? If we didn't have Lady already, I'd go adopt a dog right now! Kids and dogs, dogs and kids - they belong together!!!"
The "friend" had no answer, and gave up on the conversation! Lady became the baby monitor and diaper monitor, although the three cats took many weeks before they forgave my brother - "first you bring home the monster, and then that fire siren thing, we are NOT speaking to you!"