My little man is now sitting up on his own! He just turned 6 months. He is almost crawling. He can scoot and roll to get where he wants to go. He gets up on his hands and knees and rocks. He even moves one knee forward. Then he drops down and scoots! I can't believe how quickly he is growing. He is working on his first tooth, too! Oh, the sleepless nights. Hopefully it breaks through quickly!