I'm seeing a lot of banding on the missus' stomach - what hack version are you using? J/K, of course... CONGRATULATIONS!!!! Fatherhood is a wonderful, rewarding experience. Not really for the first few months, actually. But! After the first few months, fatherhood is a wonderful, rewarding experience. You'll be a great dad!
A small piece of advice, don't wish too hard that he grows up quickly. One day you will turn around as he is going to college and wonder what happened. Enjoy him every moment you can.