Look who is trying to sit up!

I'm not sure when it happened but it suddenly seems like overnight my little baby has turned into a little boy! He is laughing all the time, reaching out to grab things, smiling and playing with us and now he is starting to sit up! Here are some shots of his new accomplishment!

He was so proud of himself! I love the determined look on his face. HahaHe'd obviously had enough by this point. He must be saying "Mom this is hard work!"
I guess this means crawling is next! Maybe it is time to start babyproofing our house?