DS is 3 yr 7 mth and is in Nursery. He didn't start talking until he turned 3 and even now does not talk as well as the rest of the children in is class am quite worried about his speech but also have noticed he doesn't join in at the sing songs. When I pick him up all the kids are joining in and he just sits there fidgeting about in a world of his own. He's had various hearing tests and has come back fine.
It also upsets him now if I cannot understand him.
Any advice gratefully received.