
What worked for us was to get the dogs (we had 2 as well) used to any change in routine before I had the baby. So if they sleep in your room at the moment, and you decide you won't want them in your room when the baby arrives, start getting them used to where you'll want them to sleep now.
I was in hospital for a few days after I had our baby, and each day my husband would bring home the clothes the baby had been wearing, and my nightie, and let the dogs sniff them before they were washed, to get them used to the different smells. Then when I brought the baby home husband waited outside with the baby while I greeted the dogs (mad excitement because I'd been away for so long!) then brought the baby indoors in his carrycot and put it on the floor for the dogs to have a good sniff at the baby. They were startled the first time they heard the baby cry, but very quickly got used to everything, and the baby was accepted as a new noisy family member!