Ds is 21 months old and can't talk yet, he just babbles. He seems to understand when I say certain things. If I say food names he walks towards the kitchen and if I say upstairs nappy change he walks towards the living room door to go upstairs. He doesn't turn round when I say his name though and only stops momentarily when I say "no" and then tries to continue what he is doing. He isn't that interested in toys except his bead maze and moving trucks along the floor. He prefers to run around lots and climb on the furniture. He can't use the shape sorter toy properly yet but he can put the shapes into the correct place on an app on my phone.
I'm really worried he is behind in his development. Should I ring the health visitor office? My Mil said aren't we really worried that he can't talk yet, are you not talking to him. I talk to him lots, but I'm worried is it enough. Am I not doing enough, is it my fault? Am I a bad mother?