The 32-year-old singer earlier revealed that she would not be disclosing her baby's name until it is final, reported OK! magazine.
"I sing all the time and Justin lies there and talks to the bump, too, which is sweet," Walsh said.
The couple cannot wait for their baby to be born as they want to watch all their favourite childhood movies with their kid.
"Justin and I can't wait until the baby's born so we've got a excuse to watch all the Disney films and kids' TV," she said.
"I would still love a big family and have every intention of having more children, but I want to make sure I can give them all my attention," she said.
