Emilia finally learns to crawl

On Sunday morning, all of a sudden, Emilia started to crawl - but like a little worm. She would put her hands forward and lift her tummy and bum and then fall, moving inches at a time. That was the first time she really crawled forward, besides a few occasions when she was "belly-crawling". In the evening of the same day, after her birthday party, she did something more advanced. She lifted up her torso, got on her knees and then rocked back and forth a bit then moved forward. I don't know what suddenly made her realize that she had to get on her knees and move her hands forward. I know she is not yet able to coordinate her left & right hands and legs but doing this much is already very impressive, to my standards at least! She's 9 months old corrected so I really don't think she is too far behind in terms of her motor skills.