Congratulations to you both!
Say goodbye to sleep!
Yes, I remember that little tot when she was 9 pounds something...now she's 5' 8" and starting her first professional job in 8 days. Like I said, it goes fast. It doesn't seem quite so fast while it's happening, but when you look back you wonder where the time went.
Every age is great - every age is a new discovery and something new to enjoy. Some ages are more challenging than others, but that's all part of the process of growing up.