A female will have pups from two or three different males, it's not all that uncommon. Get a DNA test if you really wanna know. They're not bad priced for the peace of mind if you're using these pups to cull throughfor breeding later on.
yep, my lab got hung by a stray while I was on a bobcat in my backyard cleaning up. I had just bred her to my male lab the day before, 1/2 the pups came out lookin straight up lab and half came out lookin like straight up mutt lol
