Starting to get anxious about my little boy who turns 1 soon. He can move about a bit on his tummy by dragging himself around, and rolls around easily, and he can swivel about on his bum. But he never tries to go on his knees, or his hands and knees, and therefore can't crawl. He also never tries to pull himself up and is not very strong when standing. Is he still within normal range or should I be worried? I'm trying to be relaxed but it's a bit stressful when you see a baby who is 5 months younger happily cruising around the place! He's very good with fine motor skills and with babbling etc so I'm hoping there isn't a development issue.