Belly button bar to small?!?

AlI • Married ☺️

So I just got my belly button done with a professional piercer and I can't move it and it's super sore I just don't want it not to heal if it's to small so help please? Can I change it out to a longer bar? Or can I leave it in to heal? I got it done Saturday

(I've posted this one time already sorry just need answer s)