Welcome! I know you are anxious to get him and he is sooo cute, but I agree, please have the breeder keep your baby until he is 12 weeks old. These babies need that time with mom and littermates. Even at 12 weeks and 1-2 sets of shots completed, I did not take my boys out until all shots were completed, not in the yard, puppy training, pet stores, groomers. My vet said that parvo virus can live in the soil for years, so not to assume that our yard was okay. I have known of people's puppy getting kennel cough from being around other dogs at the groomer's or puppy training.
You will receive great information and helpful advise here. Congrats on your baby Alex