My boy will be 6 months on Christmas <a href="https://play.google.com/store/apps/details?id=com.glow.android.eve">Eve</a> and so far he’s only rolled over once, front to back, when he was like 3 months. Not once since. He doesn’t sit up on his own and when I sit him up he holds it for a second and then topples over. Also he’s not “rocking back and forth” whatever that means. He’s hit all his mental and social milestones, but he’s definitely lacking with the physical milestones. When I put him on his tummy he does the Superman and tries to squirm but that’s about it. Do I have anything to worry about? I know every baby moves at their own pace but I’m still worried. He gets SO close to rolling but then he just doesn’t so I can’t tell if he just doesn’t want to or if he’s not strong enough? Will more tummy time help? He kinda hates it so he really only does maybe 10 mins a day.