Bittersweet Milestones

I thought this week was a week of firsts, and man was I right! Oliver decided to shake his head no to me, and try to crawl in two days. He just doesn't seem old enough to me to be doing this!
In some ways I want him to stop growing, and in others I want this year to go fast so Adam can come home. It's bittersweet. And this being our last child (done having kids!) makes it bittersweet as well. I can't believe how time can fly.