MG - it may be worth getting DH to take him to an obedience course. Write down all your worries and ask the professionals the best way to handle it.

The best advice I've heard is to start changing things now. So if you're the one who lets the dog inside all the time, and walks the dog, change to DH before the baby comes - that way the dog won't associate the baby with the change in his routine.

But seriously, see some obedience courses. I could recommend a good dog school, but I don't think I'm allowed to on here.