With a new baby on the way, your other child / children need to be able to adapt to the necessary changes. Help them handle the changes by making some before the baby is even born. Get the baby's room set up and do things like setting space aside for the new baby's toys so that the other kids can get used to these things. It is recommended that you do this between 6 weeks and 3 months before the baby is born, giving your other child / children plenty of time to adapt. In this way, they won't see the arrival of the new baby into the house as so challenging.