You can get a dna for something like 30 quid. A mate of mine covered a bitch with a dog but he didn’t tie. That night a useless lurcher jumped into the run and killed the dog. So he didn’t want to take a chance so he used another dog he had. When the pups where born he got a dna done to see what dog was the father but praying the dog that got killed was. Typical the second dog was the father. There was nothing wrong with the second dog but he just wanted it to be the first