4 weeks old? Jeez, that's young
I just noticed that, why did you get such a young puppy? He should be with his mom and siblings for at least another 4 weeks. Does your breeder usually give them this early? It just seems strange to me. Does your breeder happen to have a web site?
Never mind I went and read again, your not getting him until March, boy do I feel stupid
sorry if I sounded evil, I'm really not, just not a thorough reader I guess, and over dog protective. Congratulations again!