My son is a week off 7months. He is a big chap almost 23lb and he's very long in the body. He is happy and well apart from his cmpa but I am starting to get concerned that he hasn't rolled yet and he is still quite floppy when you try to get him into a sitting position.
He hates tummy time and will only tolerate it for a few minutes. We have tried him in a bumbo seat and he leans forward or right over to one side and looks like he is going to tip out! He will sit in his IKEA highchair but we have to wedge him in with cushions and even then he sometimes leans over the edge.
Just wondering if anyone experienced similar with their big baby. My first son was not quite as big but he also rolled late and he went back to front, his sitting was much better however.