New Puppy in NJ — the first 90 days

    Week-by-week vet schedule, NJ-specific vaccine timing, potty training, and yard waste management. Written from the perspective of a service that has cleaned up after thousands of NJ puppies.

    Updated 2026-05-17 · ~9 min read · Central & South Jersey

    NJ-specific things to know: NJ has endemic parvovirus in green spaces (no sidewalk walks until two weeks after the third DHPP), endemic Lyme/tick disease (prevention starts at 8 weeks), and endemic heartworm (prevention must be active by May). These three timelines drive everything below.

    Week 1Days 1–7

    Settle in, set the schedule, do not skip the vet visit

    🩺 Vet

    • ·First wellness exam within 5 days of bringing the puppy home (most NJ vets require this for the breeder/shelter health guarantee).
    • ·Confirm vaccination records: most 8-week puppies have only their first DHPP. The next vaccines are due weeks 10–12.
    • ·Fecal test on day 1 — roundworm and giardia are extremely common in puppies, even from reputable breeders.

    🎓 Training

    • ·Crate introduction (door open, fed inside, never used as punishment).
    • ·Name response, sit, look-at-me — 3 sessions/day, 90 seconds each.
    • ·Decide the pee-spot in the yard and use the same path every time.

    🐾 Potty & Yard

    • ·Out every 60 minutes during the day, immediately after eating, immediately after waking, and right before sleep.
    • ·Expect 5–6 piles per day from a small puppy, 7–9 from a large breed.
    • ·Pick up every pile the same day — fresh puppy waste contains the highest parasite-egg load and dries into the lawn fast.

    🌳 NJ-specific

    • ·NJ municipal scoop laws apply to puppies too — even in your own front yard if it's visible from the street. Check your township's specific ordinance.
    • ·Lyme-vector tick season starts as early as March in South Jersey. Ask the vet about Nexgard / Bravecto eligibility (most start at 8 weeks or 4 lbs).
    Weeks 2–4Days 8–28

    Second vaccine, socialization window, walk schedule

    🩺 Vet

    • ·Second DHPP at week 10–12. Bordetella (kennel cough) if planning daycare or boarding within 6 months.
    • ·First nail trim — most vets and groomers will do it free at this stage to build comfort.
    • ·Heartworm prevention starts at 8 weeks in NJ (heartworm is endemic statewide — this is not optional).

    🎓 Training

    • ·Socialization window closes around week 16. Expose to 5+ new people, surfaces, and sounds per week.
    • ·Leash introduction in the yard before sidewalks.
    • ·Reward eye contact at every meal — pays off forever.

    🐾 Potty & Yard

    • ·Out every 90 minutes — bladder control extends quickly during this phase.
    • ·Pile count drops to 4–5/day for most breeds.
    • ·Start picking up immediately, not at end of day — the habit sets your long-term yard hygiene.

    🌳 NJ-specific

    • ·DO NOT walk on public sidewalks until 2 weeks after the third DHPP shot (typically week 18). Parvovirus is endemic in NJ green spaces, especially Central Jersey parks.
    • ·Backyard play is fine; dog parks are not — even fenced ones.
    Weeks 5–8Days 29–56

    Third vaccine, structured walks, yard becomes the main play space

    🩺 Vet

    • ·Third DHPP at week 14–16. Lepto (recommended in NJ — bacterial disease from wildlife urine, present statewide).
    • ·Rabies at 12–16 weeks (NJ law requires by 7 months; most vets do it at 16 weeks).
    • ·First flea/tick prevention dose if not already started.

    🎓 Training

    • ·Loose-leash walking in the yard, then driveway, then sidewalk after vaccinations clear.
    • ·Drop-it and leave-it commands — critical for NJ yards where roundworm eggs and dead small animals are real hazards.
    • ·Start brushing teeth daily (yes, daily) — periodontal disease is the #1 health issue in adult dogs.

    🐾 Potty & Yard

    • ·Out every 2–3 hours. Bladder control matches adult capacity by week 16.
    • ·Pile count down to 3–4/day for most breeds.
    • ·Yard cleanup cadence: still daily for the first 8 weeks of puppy ownership. After that, weekly is sustainable for most NJ households.

    🌳 NJ-specific

    • ·Tick check after every yard session, especially nape, ears, between toes. NJ deer-tick density is among the highest in the country.
    • ·Mosquito exposure starts in May in NJ — heartworm prevention must be active by then.
    Weeks 9–12Days 57–84

    Full vaccination, public exposure starts, lock in routines

    🩺 Vet

    • ·Final puppy vaccine series complete by week 16–18.
    • ·Schedule the spay/neuter consult (typically 6–9 months for small breeds, 12–18 months for large breeds — recommendations vary).
    • ·Set up the lifetime vet schedule: annual wellness, annual heartworm test, annual fecal test, annual dental.

    🎓 Training

    • ·First puppy class — week 12+ is the sweet spot (boosters in, socialization still open).
    • ·Recall (come) drilled in the yard with high-value treats. Never call the dog for something they won't like.
    • ·Begin alone-time tolerance: short crate sessions while you're in the next room, building to 1–2 hours by week 12.

    🐾 Potty & Yard

    • ·Out every 3–4 hours during the day, full overnight by week 12 for most breeds.
    • ·Pile count stabilizes at 2–3/day.
    • ·If you're working full-time outside the home: midday walk or yard break is needed until at least 6 months.

    🌳 NJ-specific

    • ·Sidewalks, neighborhood walks, and low-traffic trails are now safe with full vaccinations.
    • ·Dog parks are still risky for any puppy under 6 months — focus on 1-on-1 supervised playdates instead.

    Want the printable week-by-week checklist?

    Printable PDF with the vet schedule, vaccine cutoffs, and yard-cleanup cadence by week. Stick it on the fridge for the first 90 days.

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    FAQ — NJ puppies

    Two weeks after the third DHPP vaccine — typically week 18 of life. Parvovirus is endemic in NJ green spaces and the consequences of an early exposure are severe. Yard play is fine before that; sidewalks, parks, and any space other dogs use are not.

    5–9 times per day under 12 weeks, dropping to 3–4 by week 16 and 2–3 in adulthood. The first 8 weeks of ownership, plan to pick up every pile the same day — fresh puppy waste has the highest parasite load and breaks down into the lawn fast.

    DHPP (distemper, hepatitis, parainfluenza, parvo) at 8, 12, and 16 weeks. Rabies by 16 weeks (NJ law). Bordetella if planning daycare/boarding. Leptospirosis is strongly recommended in NJ because of wildlife exposure statewide. Heartworm prevention starts at 8 weeks.

    Most vets recommend waiting until 6 months — long after full vaccination. Dog parks are higher-risk because of unknown vaccination status of other dogs. For the first 6 months, supervised playdates with known-vaccinated dogs are safer.

    Yes — once fully vaccinated. Our dog walking is an add-on to scheduled waste cleanup visits. Once your NJ puppy clears the parvo window (around week 18), we can include a short walk or yard play session during cleanups. (609) 766-5262 for details.

    NJ new-puppy households: we'll handle the yard

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