Does my MIXED puppy have PIT in him?

I took in a puppy he is ten weeks old. I live in Florida and there are pitbulls left and right here, Backyard breeders everywhere. Well the puppy I took in is an English Bulldog mix. The owners dog got out and came back pregnant and they don't know the father. I saw the mother and she was not show quality english bulldog, she looked more like an american bulldog but was definately english bulldog her features just werent as exaggerated. She was also solid white, non of the puppies were white they were all tuxedo colored, black with front white socks and white chest or the others were brindle but none white like her. My puppy bruno looks NOTHING like an english bulldog. He's ten weeks old his mouth is....how do I explain this... kind of like a triangle? if hes laying on his back with his chin up it looks like its a triangle, its not a long snout. He's not aggresive but has to tear apart everything, like all puppys do but kind of with a destructive manner. His front paws are solid white and his back jsut have white toes. His front paws are also TWICE the size of his back, but hes not super huge for 10 weeks. Just his paws are, he had the biggest paws of the litter. Does anyone have a guess at what his other half is? I saw the mother and her papers she's definitly English Bulldog but it doesn't show in my dog at all. My best guess is pitbull.