Ok so I have a 3 months old baby girl, and she started to lift her head up while she was one her belly like a month ago. She was always doing that and now she doesnt want to anymore. When I put her on her belly, she puts her arms on the side of her body and pushes herself with her leg on the side and than her back. So she rolls over already. So is that means she wont crawl? Cz every time i put her on her belly she rolls over...i even put her arms "up" by her head...but no...