Thanks everyone
My hope is to have him trained to go outside most of the time but have a doggy litter box for when I'm at work or it's really rainy or something. I have a Purina dog litter box and in a few weeks I'm going to try and put the potty pads in there, then I'll put the actual litter in it later if he gets used to it okay. Hopefully in a couple weeks he will like going outside a lot better though.