What Mix is My Puppy?

My boyfriend and I recently rescued a puppy off of the side of the road. When we got him, we took him to the emergency vet to get him checked out and make sure nothing was seriously wrong or anything. They said everything looked fine, he was just covered in sores from being outside for a long period of time and having fleas, so we got him some flea medicine and he was wormed and received all of his shots.

They estimated that he was about 7 weeks old and when we asked if they could give us an idea of what mix he was, all they could tell us was that he had Labrador in him. I'm really curious to know what he is just so that we can properly care for him and know what to expect behavior-wise since we already have a German Shepherd/Lab mix.

His nose is pointy, and his feet are "huge" and wide and his ears are floppy and sit straight on top of his head. He also has the extra claw on his back feet (I can't remember what it's called).

By Chelsea