scbatz33 is correct.
As long as he was properly neutered, you are okay. I have heard of vets missing a crytorchid testicle and getting a female pregnant, but it is very rare. It usually happens at shelter or spay clinics where the procedures are done quickly.
Your neutered dog will probably always go for the female when she is in heat. Even intact females or spayed females will hump a in-season female, LOL.
As long as he was properly neutered, you are okay. I have heard of vets missing a crytorchid testicle and getting a female pregnant, but it is very rare. It usually happens at shelter or spay clinics where the procedures are done quickly.
Your neutered dog will probably always go for the female when she is in heat. Even intact females or spayed females will hump a in-season female, LOL.