My 9 month old army crawls. Started crawling at 7 and a half months. He stands well with support and has started to cruise along furniture. But he can't crawl on fours. He gets onto his fours, but can't move much like that. Prefers to army crawl but doesn't prefer one part of body over other.. Uses both his hands and feet to do so. He also doesn't point towards objects. Is this normal?