
I prefer not to vaccinate my won puppies until 10 and 12 weeks even though the vaccines my vet uses can be given at 8 and 10.
My dogs live as a family group and my Mums have free access to their pups until they leave so my pups are likely to have high levels of maternal antibodies that will potentially interfere with vaccination uptake.
I do not let part vaccinated puppies go to new homes as there is every chance the new owners Vet will use different vaccines and they will then be re-started meaning pups will receive extra vaccinations which they don't need and indeed many feel may actually be harmful.
With any pups I have that are not yet homed at 8 weeks I will then vaccinate at 8 and 10 weeks and new owners coming along after the first jab will then have to wait for the full course.
In my medium size breed pups are mature enough to start going to new homes at about 7 1/2 weeks.