Indeed, I think sitting up happens around 6 months. If he is well beyond this, then doublecheck what his lifestyle has been. Don't confine him. It is so common these days to see babies strapped into their carriers or in strollers instead of being carried in their parents' arms: in addition to being deprived of the affection of being hugged a lot, their bodies are immobilized. When he's not being carried, let him freely move so that he can gain more command over his body and also strengthen his muscles. Make sure he can roam about the room you're in, rolling, crawling, scooching, whatever. It might be less convenient than confining him: there are many gadgets on the market for parents to avoid handling their children and letting them experience constant affection. But a couple of years of devoted attention gives your child a lifetime of wholesomeness!
at 7:32 PM on Jun. 19, 2008