I had the same thing happen this year also. A doe with 2 fawns decided to take up residence in our backyard. So for about a month I would carry my pistol with me to take the dog out. One evening I got into a staring contest with the doe at about 30' and when she didn't back down I shot a nearby tree stump. She took off and wasn't a problem after that.
I normally carry when I leave the house, but not out in the yard. Good for you being able to take back your territory! Man, they could put a hurtin’ on someone (or a small dog)
She ran, took a jump and “landed” on the dog causing it to a roll a few times. It happened fast.