Lily didn't crawl until she was nearly 10 months old, but Charlotte will not stay in one place. She has learned to get up on all fours and is now launching herself around the room. She is not even 5 1/2 months old yet and my bet is that she will be crawling within a week. I'm not ready for this!
This video is 4 days old and even in the last 4 days she has mastered being up on all fours and scooting.