My husband will be closing on a home in a week, I was told that he couldn't add me at that time on the deed of the home. I'm a stay at home mom so I have no real credit to be added to the loan. What can I do before then to ensure my name goes on the deed?

Your name should be added to the deed regardless if you are a stay at home mom not earning any money. You are his wife. Who told you that nonsense?