A.M.
This is a great situation! Your dog will be fine since he will be in his own home with a good pet sitter. He will have fun and wait patiently for you to come home. I just read an article about a dog that can smell his owners blood sugar and alert him if it is high or low. So I think you can rest assured your dog will not forget you after a week - they are super smart and have a great memory. Have fun!