Hi everyone! My little guy is 7.5 months old and still can't sit up without help. I asked his doctor at his checkup last month and he said not to worry about it as he believes it's due to his size: he's in the 50-60 % for weight and head and only 5-10 in length. I can't help but worry 😔 he's a happy little guy, just hates tummy time and needs a little help sitting. Whenever we give him toys to tey to keep him on his belly he just grabs it and flips over. Anyone else's baby not sitting unassisted?