Free breeder tool

Puppy Milestones Calculator

Enter the litter's birth date and get the whole development timeline on real calendar dates, eyes opening, weaning, vaccines, temperament testing, and go-home day.

Expecting? Enter the due date to plan the whole schedule in advance.
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Enter the litter's birth date and get every milestone mapped to real dates, eyes opening, weaning, vaccines, temperament testing, and go-home day.

The three developmental periods

A litter's first 56 days follow a schedule that barely varies, and a breeder who can show families exactly what happens each week earns trust no marketplace listing can.

Weeks 1–2

Neonatal

Warmth and weight are everything, twice-daily weight checks catch problems before anything else does.

Weeks 2–3

Transitional

Eyes open around days 10–14, ears a few days later. First wobbly steps and first deworming.

Weeks 3–14

Socialization

The window when gentle exposure to people, sounds, and surfaces shapes the adult dog. Breeders own the first five weeks of it.

Dates to lock in the day the litter is born

Week 2

First deworming

Then repeat every two weeks through go-home.

Weeks 3–4

Weaning begins

Gruel introduced; fully weaned by 6–7 weeks.

Weeks 6–8

First vaccines & exam

First DHPP alongside the litter’s first full vet exam.

Day 49 & Week 8

Evaluations & go-home

Temperament testing at 7 weeks; go-home at 8, the legal minimum in most U.S. states.

Common questions

When can puppies go to their new homes?

Eight weeks (56 days) is the standard, and in most U.S. states the legal minimum. Many breeders of toy breeds hold puppies to 10–12 weeks because tiny puppies benefit from the extra time with the litter.

When do puppies open their eyes?

Between days 10 and 14 for most puppies, with ears opening a few days after. Vision and hearing sharpen gradually over the following weeks.

When should the first vaccines happen?

The first DHPP combination vaccine is typically given at 6–8 weeks, with boosters at 10–12 and 14–16 weeks handled by the new family, which is why a written vaccine record belongs in every go-home packet.

What is the socialization window?

Roughly 3 to 14 weeks of age, the period when puppies form lifelong impressions of people, surfaces, sounds, and handling. Breeders own the first five weeks of that window, which is a genuinely underrated selling point for a well-run program.

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Whelpify turns this timeline into your workflow

Litter pages with weekly photo updates, weight tracking, applications and matching, deposits, and a go-home packet with contracts signed online, every milestone above, handled in one place.

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