Sounds normal to me! My LO only says those words too and not in context all the time xx
Mine says nothing! She has noises that mean things but no actual words yet.
My boy has only said dada since 10 months and no progression no matter how hard I try to introduce new words
At this age, I'd say that's normal and am sure he will say plenty more in time. My little boy's mainly babbling, lots of mama, baba and dada, and just walking