Yikes! What kind of glass? How large? How sharp? How many pieces? I would do my very best to find a way to see a vet. If you don’t know, you might have to later anyway with an emergency on your hands! At least call them.
I’ve seen couple times a vet feed cotton (I think it was) but all that has so many dangerous variables I would not risk it ever.
There really is no point in worrying yourself to death until Monday! I mean remember the Internet can be wrong too!!
I just can’t even sleep. I’ve had him since he was 8 weeks old. He’s still just a baby. I’d do anything to make sure he was ok.