Congrats.
Get ready to ride the biggest emotional roller coaster of your life. For me, and my wife agrees, having kids was like looking over and seeing the monster roller coasters, realizing that you have been riding the kiddie rides all along. Every extreme of emotion that you have experienced up until now will be tripled, or more, in frequency and degree. This includes: anger, frustration, joy, pride, and everything in between.
Enjoy the ride. I know I am, and we are just rounding the first corner.