DS is going to be 11 months old next Sunday. He still isn't crawling. He will get up on all fours and rock back and forth, and he'll keep his arms up and pull himself around dragging his legs behind him, but not actually crawl. He also doesn't pull himself into a sitting position, and doesn't pull himself up on things, but will stand holding something if we put him that way. He's finally in the last couple of days figured out how to bend his knees and walk if we're holding his hands, but only does this once in awhile and only for a few steps before he doesn't want to anymore. I don't know if I should wait until his 1 year check up next month, or call the doctor now. He wasn't concerned at his 9 month appointment, but that was 2 months ago. Anybody else's babies not crawling at 11 months?