Wisdom teeth removal question?

I got my wisdom teeth out this morning and for one I am in a lot of pain. I’ve taken pain medication and it still hurts but I don’t want to take too much. Anyways my question is when I try and bite down my molars don’t touch as they used to. There is space left in between. I was wondering if they’d eventually go back to normal? Is it because of the swelling? Or the extra space? I’m just a little worried and if anyone knows what it could be I would lobe to know!