Can babies have off days with babbling??

My 7.5 month old son just had his ears checked and they said everything was fine so I guess that leads me to ask do babies have off days where they just don’t babble or are they supposed to babbled every day? I asked my pediatrician and she didn’t acknowledge the question so I figured it was stupid so I figured I will ask my stupid question here lol and maybe someone will be nice and answer it