I chipped a tooth and I have braces. Should I get it looked at today?

I’ve had braces for about a month now college with braces, yesss., and last night I chipped one of my back teeth.
I grind my teeth when I sleep can’t wear a mouth guard… it makes me choke and I guess somehow it got chipped in the process. It hurts, and that is what’s bothering me.
My orthodontist has an emergency line that will call him and he will meet us at the office he lives next door to it if we need him during closed hours.

Is this considered an “emergency”? Or should I wait until tomorrow and call?