Hi, my 11 and half month old isn’t crawling (I know this isn’t technically a milestone) but he’s not pulling to sit or walk either. He can happily roll around the room and sit without support but refuses to sit whilst on floor to play with his toys; he prefers laying on front or back. He does press up with his arms and gets so high but nothing more. He’s been very occasionally getting to on all fours and rocking but this hasn’t really progressed into anything. Is there anything i can do to encourage movement? I’ve bought him a crawling toy but that doesn’t even motivate him. Have I got anything to be concerned about? I’m worried he’ll turn 1 and still not be on the move. It could just be I have one super chilled out little dude.