11/12 month old not talking

Dani

My son is about to be a year in a few days. He said mama early on. And then dada. He would say gaga, hi, hello, hey, dog, duck and then our dogs name (dake) Drake. In about the last week/week and a half, he won’t say any of them. He makes typical high pitch noises, but won’t say any of those words even if we say it to him a few times. I’m worried something is wrong.