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New Puppy Checklist: Your First 30 Days Health Guide

Updated October 2026 · 8 min read · By MaunaPet

Published by MaunaPet. Editorial policy and sources.

Bringing home a new puppy is an exciting milestone, but the first 30 days are crucial for establishing good health, habits, and a strong bond. This comprehensive guide will walk you through what to expect and how to prepare.

Important: The crucial socialization window for puppies is between 3 and 16 weeks of age. Positive exposure to new people, places, and sounds during this time is vital for preventing fear-based behaviors later in life.

Week 1: The Arrival and First Vet Visit

Focus on settling in. Create a safe, comfortable space for your puppy. Begin basic crate training to give them a secure den and assist with potty training.

First Vet Visit Checklist:

Week 2: Vaccinations and Preventive Care

Your puppy's vaccination schedule typically starts around 6-8 weeks of age, with boosters every 3-4 weeks until they are about 16 weeks old.

Generate a Vaccine Schedule

Never miss a booster! Create a custom vaccination timeline for your puppy.

Vaccine Schedule

Week 3: Nutrition and Growth

Puppies need a high-quality diet specifically formulated for growth. Large breed puppies need specialized large-breed puppy food to prevent bone and joint issues. Establish a consistent feeding schedule, usually 3-4 times a day depending on age.

Track Your Puppy's Growth

Make sure your puppy is growing at a healthy rate. Estimate their adult weight using our tool.

Weight Calculator

Week 4: Socialization and Training

While waiting for full vaccination coverage, focus on safe socialization. Carry your puppy outside, introduce them to vaccinated, friendly adult dogs in private yards, and expose them to various sights and sounds at home.

Essential Supplies List:

Manage Your Puppy's Health

Organize your puppy's entire health journey from day one — download MaunaPet

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