Routine – change of the old routine and creating a new routine for the newborn – is commonly the biggest issue parents face when bringing a new baby home to older siblings.
Lack of sleep can be a tough one as well. Newborns wake up in the middle of the night and then the other siblings wake up early in the morning.
Focusing on two children can be a huge adjustment. Building the relationship for both takes work.
It is very wise to organize a lot of help from a post-partum doula, someone who can jump in and help you with the transition.