I have a 10 month old DS who is a still unable to sit unaided for more than a few seconds. If he moves when sitting he topples over. He isn't crawling though does do swimming moves when he is on his front....cant get his legs under him though , he also doesn't try weight bearing on his legs either . He does roll well though!!!!
He is a big boy 100th centile for weight and height and is on the errrm chunky side!!!
I'm worried now , all the others at his baby group are at least sitting, most are crawling or at least making the effort to get around!
I spoke to my HV at his 9 month check and she was unconcerned and said he would sit when he was ready . I have however googled ( very bad move ) and found that its a red flag if not sitting at this check.
Apart from anything else it's getting a nightmare to entertain him as he doesn't want to be laid down and I am spending all day sat behind him to prop him up so he can see what's going on.
I just have this feeling there is something going on with him with his physical development and no one is listening to me