Why windows instead of exact dates
Vaccine timing is a range by design: the AAHA guidelines specify the DHPP series as a first dose in the 6–8 week window, boosters every 2–4 weeks, and a final dose at 16 weeks or later. Where inside each window your puppy lands depends on maternal antibody levels, local disease pressure and your vet's judgment — which is exactly why this page prints windows, not appointments. Rabies is the special case: it's legally required, but the required timing is set state by state, so the only honest answer is the one on your vet's wall.
Using the schedule
Print it for the fridge or push the windows into your calendar, then book each appointment inside its window. Bring the breeder's or shelter's vaccine record to the first visit — the series continues from wherever it actually started, and doubling up is as unhelpful as skipping. Socialization can start before the series ends: carried outings and vaccinated-dog playdates are how the critical window gets used safely.
Frequently asked questions
When should a puppy get its first shots?
Core DHPP vaccination typically starts in the 6–8 week window, with follow-up doses every 2–4 weeks until at least 16 weeks of age, per the AAHA canine vaccination guidelines. Breeders often handle the first dose — always get the paperwork so your vet can slot into the series correctly.
What does DHPP actually cover?
It's the core combination shot: Distemper, Adenovirus (hepatitis), Parvovirus and usually Parainfluenza. These are the diseases every dog needs protection from regardless of lifestyle — which is what makes a vaccine 'core' in the AAHA framework.
When do puppies get the rabies vaccine?
Usually somewhere in the 12–16 week range — but rabies timing is set by state and local law, not by a universal chart, which is why this generator deliberately doesn't put a date on it. Your vet knows your jurisdiction's rules.
What happens if my puppy missed a vaccine window?
Don't guess and don't start over on your own — call your vet. Catch-up schedules are routine veterinary work, and the right answer depends on age and which doses were already given.