Tips to prepare your pooch for siblinghood:
1. Baby room is OFF limits. I think that they need to know that it was never their space to begin with.
2. Your bed is OFF limits. Make it clear who's the boss (BTW, I don't think it's me either!)
3. Baby toys, clothing and any other possessions are all OFF limits. No need to let them get up close to everything. Make sure your dog knows what's theirs and was is NOT.
4. Practice Baby Cries (see video).