- The transfer of trust. Somewhere in the first week home, the puppy stops looking for its litter and starts looking for you. You'll notice it following you room to room. That's the milestone.
- First successful potty streak. A full day without an indoor accident usually shows up late in week one or week two if the trip schedule is generous. (The week 8 entry has the day-by-day version.)
- Crate acceptance. Crying at bedtime fades from hours to minutes. With Maple it took four nights.
- Vet milestone: the first checkup, and confirmation of the DHPP series (first shot typically around 6–8 weeks, boosters every 2–4 weeks until 14–16). The printable chart lives on our sister site PupSchedule.
Puppy milestones by week
These are the landmarks I actually watched for across three puppies — not lab-coat developmental stages, but the moments where you can look at your puppy and think, "right on schedule." Every dog hits them at its own pace; treat the weeks below as mileposts, not deadlines.
Weeks 8–9 — arrival and attachment
Weeks 10–11 — confidence and teeth
- The land-shark switch flips. Mouthing peaks. This is developmentally on time, not a behavior problem — week 10's entry is essentially a survival guide for it.
- First zoomies. A rite of passage. Move the mugs.
- Name response. A puppy that whips its head around to its name in a quiet room is on track; in a distracting room, that's a six-month skill.
- Socialization sweet spot. The openness window is wide open; carried field trips count fully.
Weeks 12–14 — consolidation
- Sleeping through the night. All three of mine got there between eleven and thirteen weeks. If I could only pick one milestone to celebrate, it's this one.
- The day gets a shape. Eat-potty-play-nap cycles stretch and stabilize — the week 12 schedule shows what mine looked like.
- First trained behaviors stick. Sit on cue, a recall word that works indoors, the beginnings of "drop it."
- Vet milestone: a DHPP booster typically lands here, and rabies enters the conversation (given between 12 and 16 weeks per local law).
Weeks 15–17 — the turning point
- Vaccine series complete (typically 14–16 weeks) — and with the vet's all-clear, the world opens. First real walk is a milestone for both of you.
- Baby teeth start falling out. Adult teeth arrive over the following weeks; chewing pressure peaks.
- Possible second fear period. A confident puppy briefly deciding the mailbox is a threat is, weirdly, on schedule. The 16-week entry has the playbook.
- Breed divergence becomes obvious. Sixteen weeks on a Yorkie and sixteen weeks on a shepherd are different worlds — the breed notes exist for exactly this reason.
Months 5–6 — the road to adolescence
- Adult teeth mostly in by around six months; teething ends, recreational chewing begins.
- Meals settle toward two a day for many puppies (vet and label have the final word).
- The teenage switch. Selective hearing, boundary testing, a recall that suddenly needs a refresher — the six-month entry covers why nothing is broken.
- The personality arrives. The quirks that will define your particular dog start showing. This is the milestone nobody puts on a chart, and it's the best one.
When to worry vs. when to wait
My rule across three puppies: a milestone arriving a couple of weeks "late" never turned out to matter; a milestone regressing sharply (potty training collapsing, sudden fear that doesn't fade, sleep falling apart for no schedule reason) was always worth a vet call. Trust the trendline, not the date — and when in doubt, ask the professional who has actually met your dog.
Questions I get asked a lot
When do puppies sleep through the night?
Mine all got there between eleven and thirteen weeks, with an earlier dinner and a lifted water bowl helping things along. Some puppies do it sooner, some need another few weeks. Persistent night-waking past three months is worth a vet conversation.
What milestones should an 8-week-old puppy have hit?
At arrival, honestly, very few — eating solid food, walking confidently, and showing curiosity are the big ones. The meaningful early milestones (following you around, first potty streak, crate acceptance) happen in the first weeks home, not before.
My puppy is behind on a milestone — should I worry?
A couple of weeks of lag on any single milestone never mattered with my dogs. What's worth a vet call is sharp regression — potty training collapsing, sudden persistent fear, sleep falling apart without a schedule explanation — or several milestones stalling together.
When do puppies lose their baby teeth?
Starting right around the sixteen-week mark for most puppies, with adult teeth in by roughly six months. If you find a tiny tooth in the carpet, that's the milestone announcing itself.
Every puppy is different — please confirm timing, doses, and anything health-related with your veterinarian. This journal is one owner's experience, not veterinary advice.
Want this whole first year mapped out for your puppy?
The PupSchedule app takes your puppy's birth date and builds the entire timeline — vaccines, socialization windows, training stages — week by week. I'm on the waitlist; you can be too.