Hi lilmojosmom!
I am an owner of cute little Jackie and i can tell you first hand that your baby will adjust perfectly on himself.
I wasn't worried about adjusting when i got her. When me and my boyfriend are at work she is at home in her place (at the hallway), she has her bed there, food and some of her toys. She sleeps most of the time and when we come home she is happy and perfectly normal.
Dogs adjust to any situation. If you play with your little baby when you're home, he'll be grateful and will do anything for you, even wait peacefully for you to come home from work.
Good luck!