Thoughts and prayers are most definitely sent for the 2 of you.
Did they determine for sure that his intestines got punctured? If it did then get ready for emergency surgery because they can go septic fast, that's what happened to my Rottie and it was VERY expensive. With any luck and a helping hand from the BIG GUY above
this won't be the case.
Was he lathargic at all? Did he have any ticks on him lately?
I'm rooting for you's both for a simple cause and a speedy recovery!
If you need to vent or some questions answered drop me a PM.