Orphaned puppy tips- socialization suggestions and puppy development.?

You are lucky to have two other dogs to help you with the new baby. I would just spend lots of time with the baby and talk softly and maybe sing to the baby. My dogs love me to cuddle them and after years, I am still trying to get them to let me hold them on their backs. That is a trust thing and needs to be learned when they are very young. Be careful not to yell, no-one likes to be yelled at. Keep up the good work and you will be rewarded.