My son will be 3 in February and he is hardly saying anything. I noticed he is trying more frequently to say things but he won’t interact or answer questions or anything like that. He knows his numbers and letters and can say at least 30-40 different animal names. But it wouldn’t be something other people can understand if that makes sense. I’m worried he had a speech problem. He also has no interest in potty training yet. Anyone else having similar issues?