Hi. Welcome to YT! I hope my advice doesn't sound too simplistic, but I would try to get up and get him out sooner. They aren't able to hold bowels or urine as long when they are such wee ones. They do get better as they get older. It's just a lot of potty trips when they are so tiny. They also need to eat multiple small meals because they are at risk for low blood sugar until they get a little older.
Once I owned my first yorkie, I was hooked! I'm sure you will be too if you aren't already!
