Is my kid the only one not talking?😧

sl

My son has never called me "mama" or his father "dada" he doesn’t point at things or try to use worlds. I know what he wants from his behavior and type of cries when he’s upset but he just doesn’t have any words yet to communicate. The only thing he gestures for is to be picked up. The doctor is aware of it and isn’t worried yet just wondering if any other 15 month olds are not talking