Bringing home a new puppy is one of life’s most exciting moments — but it’s also where the first 16 weeks shape your dog for life. This guide consolidates everything a first-time puppy owner needs across training, healthcare, socialisation, nutrition, and essential purchases, with links to our in-depth specialist guides.
- Before Your Puppy Arrives (The Prep Checklist)
- The Critical First 16 Weeks
- •Week 8-10: Settling In
- •Week 8-16: Socialisation Window
- •Week 8-16: Vaccination Schedule
- •Dealing with Puppy Biting
- Training Foundations
- Healthcare First Year
- Frequently Asked Questions
- •When can my puppy go outside?
- •How long can a puppy be left alone?
- •What’s the best food for a puppy?
Before Your Puppy Arrives (The Prep Checklist)
- ✅ Puppy-proof the house (cables, toxic plants, small objects)
- ✅ Buy a crate (sized so they can stand, turn, and lie down)
- ✅ Register with a vet (before pickup day)
- ✅ Research pet insurance (start from day one)
- ✅ Stock up on food, bowls, collar, lead, poo bags, enzyme cleaner
- ✅ Book time off work (at least the first 3-5 days)
The Critical First 16 Weeks
Week 8-10: Settling In
Your puppy has just left their mother and siblings — this is a major life upheaval. Focus on comfort, routine, and bonding. For a detailed day-by-day plan, see our puppy first week guide.
Week 8-16: Socialisation Window
The most important period in your dog’s entire life. Puppies exposed to a wide range of people, animals, sounds, and environments during this window grow into confident, well-adjusted adults. Those who miss it often develop fear, reactivity, and aggression.
Read our comprehensive puppy socialisation guide for a week-by-week plan.
Week 8-16: Vaccination Schedule
Your puppy needs a primary vaccination course (typically at 8 and 10-12 weeks) before they can safely walk in public places. Learn the full UK schedule in our puppy vaccination schedule guide.
Dealing with Puppy Biting
All puppies bite — it’s how they explore the world. But needle-sharp puppy teeth hurt! Our puppy biting solutions guide covers bite inhibition training, teething relief, and when biting crosses from normal to problematic.
Training Foundations
Start training from day one using positive reinforcement (treats, praise, play). The essential commands every puppy needs:
| Command | When to Start | Why It Matters |
|---|---|---|
| Name response | Day 1 | Foundation for all other training |
| Sit | Week 1 | Impulse control, polite greetings |
| Recall | Week 2 | Safety — the most important command. See our recall training guide |
| Lead walking | Week 3+ | Enjoyable walks for life. See our lead walking guide |
| Leave it | Week 4+ | Prevents scavenging. See our leave it guide |
| Crate training | Day 1 | Safe space, house training. See our crate training guide |
Choosing the right trainer is crucial. For advice on what to look for and red flags, see how to choose a dog trainer.
Healthcare First Year
- Vaccinations: 8 weeks + 10-12 weeks primary course, then annual boosters
- Microchipping: Legal requirement by 8 weeks old in England
- Worming: Every 2 weeks until 12 weeks, then monthly until 6 months, then every 3 months for life
- Flea treatment: Monthly from 8 weeks old
- Neutering: Usually 6-12 months. See our neutering guide
Frequently Asked Questions
When can my puppy go outside?
After their second vaccination (usually 10-12 weeks) plus 1-2 weeks for full immunity. Before this, carry your puppy outside for socialisation exposure but don’t let them walk on public ground where unvaccinated dogs may have been.
How long can a puppy be left alone?
As a guideline: their age in months + 1 = maximum hours alone. So a 3-month-old puppy shouldn’t be left for more than 4 hours. Never exceed 4-5 hours for any age. If you work full-time, arrange a dog walker, daycare, or family member to break the day.
What’s the best food for a puppy?
Choose a complete puppy food appropriate for their expected adult size (small, medium, or large breed). Puppies need higher protein, fat, and calcium than adults. Feed 3-4 meals daily until 4 months, then 3 meals until 6 months, then 2 meals for life.
Reviewed by Dr. Sarah Jenkins, MRCVS
Dr. Jenkins is a fully practicing veterinary surgeon in the UK with over 15 years of clinical experience in small animal medicine and canine behaviour. She reviews and verifies our health content to ensure medical accuracy.