Hi, my ds3 will be 10 weeks old tomorrow and cannot lift his head at all, on tummy or when supported to sit. He either flings it forward or back. I’ve tried all the different tummy time techniques as much as possible but he doesn’t even attempt to lift it. My other sons were lifting their heads both on tummy and being held way before now. I know every baby is different but I’m worried something is wrong . (Currently awaiting physio) . Did anyone else’s little one take longer to control their head? Thank you