Adopting a New Dog or Puppy: What to Do in the First Week

Quick answer

For the first week, keep your new dog or puppy in a quiet, confined space, stick to a simple routine, and avoid introducing new people or pets. Expect accidents and whining, and plan a vet visit within 48 to 72 hours. Your main job is to be observant and patient, not to train everything at once.

Why the first week sets the tone for your new dog adjustment

Your new dog or puppy is in a strange place with unfamiliar smells, sounds, and people. The first week is about building a sense of safety, not about teaching advanced cues. Dogs need time to decompress, and pushing too many new experiences can backfire. Keep things boring and predictable on purpose: same feeding times, same potty spots, same quiet area. This is the foundation for everything that follows.

A common mistake is treating the first week like a homecoming party. Visitors, trips to the pet store, and meeting other dogs all add stress. Instead, think of it as a quiet retreat. You can gradually add new people and places after your dog shows relaxed body language and a steady appetite.

Set up a safe space before your dog comes home

Before you bring your dog or puppy home, choose a small, dog-proofed area—a crate, pen, or a gated corner of a room. Remove electrical cords, toxic plants, and small objects that can be chewed or swallowed. Put a bed, water bowl, and a few safe chew toys inside. This space should be where your dog can rest without being bothered by children or other pets.

A common mistake is giving a new dog full run of the house on day one. That can lead to house soiling, destructive chewing, and overwhelming anxiety. Instead, use the safe space as a home base and gradually expand access as your dog earns it. For puppies, a crate that is just big enough to stand, turn around, and lie down is ideal.

Establish a simple daily routine from day one

Dogs thrive on predictability. Set fixed times for meals, potty breaks, short walks, and quiet rest. For puppies, expect to go out every 1–2 hours during the day and at least once in the middle of the night. For adult dogs, start with every 2–3 hours and adjust based on their bladder control. Always go to the same potty spot and reward immediately after they finish.

A common mistake is feeding a new dog a different food than what the shelter or breeder was using. Sudden diet changes can cause diarrhea, which makes house training harder. If you need to switch foods, do it gradually over 7–10 days, mixing increasing amounts of the new food with the old. If you’re considering a home-prepared diet, wait until your dog is settled and consult your vet.

Start basic potty training and crate introduction

Take your dog out first thing in the morning, after every meal, after naps, and before bed. Reward with a treat and praise the moment they eliminate outside. If you catch an accident inside, interrupt with a gentle sound and take them out immediately—never punish. Clean accidents with an enzymatic cleaner to remove odors that attract repeat marking.

For crate training, make the crate a positive place. Feed meals inside, toss treats in, and leave the door open during the day. Start with short absences of a few seconds and build up. A common mistake is closing the crate door too soon and leaving a puppy crying for long periods. That can create a negative association. If your dog panics, slow down and get help from a trainer.

Schedule a vet visit within 48–72 hours

Book a veterinary appointment for the first few days after bringing your dog home. The vet will check for parasites, update vaccinations, and discuss flea and tick prevention. Bring any records from the shelter or breeder. For puppies, this visit is also when you can ask about spaying or neutering timing and microchipping.

A common mistake is skipping the vet visit because the dog seems healthy. Many rescue dogs have intestinal parasites or kennel cough that aren’t obvious yet. Early treatment prevents bigger problems and protects other pets in your home.

Manage introductions to people and other pets slowly

Keep the first week low-key. If you have other dogs, introduce them one at a time on neutral territory, like a quiet park, and keep both on leash. Watch for stiff body language, growling, or avoidance. Separate them if either seems uncomfortable. For cats, use a baby gate or closed door so they can smell and see each other without direct contact.

A common mistake is forcing interaction. Let your new dog approach at their own pace. Treats and praise for calm behavior around other pets will build positive associations. If you see aggression, consult a professional rather than punishing. Whole Dog Journal’s ebook Canine Aggression explains that aggression falls on a wide spectrum and that understanding where your dog falls is the first step to acting appropriately.

Watch for stress signals and give your dog downtime

New dogs often show stress through excessive panting, pacing, hiding, or refusing food. Provide a quiet place to retreat and don’t force interaction. Some dogs need days or weeks to relax. Keep your voice calm and movements slow. If your dog is overly fearful or reactive, consider consulting a veterinary behaviorist.

A common mistake is interpreting normal adjustment behaviors as permanent problems. A dog who hides under the bed on day two may be social and playful by week two. Give it time. If you’re unsure, Whole Dog Journal’s ebook Adopting Your New Dog: What To Do with Your New Dog or Puppy offers a detailed guide on what to expect and how to react to unexpected challenges.

First-week action steps

1. Prepare a safe space: Set up a crate, pen, or gated area with a bed, water, and safe toys before your dog arrives. Dog-proof the area by removing cords, toxic plants, and small objects. Checkpoint: Your dog has a quiet place to retreat where they cannot get into trouble.
2. Keep the first 48 hours quiet: Limit visitors and avoid trips to pet stores or dog parks. Speak softly and move slowly. Let your dog initiate contact. Checkpoint: Your dog eats and drinks normally and shows curiosity about their surroundings.
3. Start a fixed routine: Feed at the same times each day, take potty breaks every 1–2 hours for puppies and every 2–3 hours for adults, and schedule naps. Checkpoint: You see fewer accidents and your dog begins to anticipate the schedule.
4. Introduce the crate gradually: Feed meals in the crate, toss treats inside, and leave the door open. Close the door for seconds at a time, then build up. Never use the crate for punishment. Checkpoint: Your dog enters the crate willingly and remains calm for short periods.
5. Schedule a vet visit within 48–72 hours: Bring any records. The vet will check for parasites, update vaccines, and discuss prevention. Ask about spay/neuter timing and microchipping. Checkpoint: You have a written health plan and any necessary medications.
6. Introduce other pets slowly: Use neutral territory and keep dogs on leash. Separate with a baby gate for cats. Reward calm behavior. If you see aggression, consult a professional. Checkpoint: All pets can be in the same room without intense staring, growling, or lunging.
7. Give downtime and observe: Provide a quiet space and don’t force interaction. Watch for stress signals like panting, pacing, or hiding. If your dog seems overly fearful, consult your vet or a behaviorist. Checkpoint: By day seven, your dog shows relaxed body language for longer periods and seeks you out for gentle contact.

Recommended resources for new dog owners

• Adopting Your New Dog: What To Do with Your New Dog or Puppy: This ebook covers what to expect and how to react to unexpected situations when you bring home a new puppy or dog. It helps you prepare for the first week’s surprises, from house soiling to whining, so you can respond calmly and effectively.
• Canine Aggression: This newly updated ebook explains that aggression is a common condition that falls on a wide spectrum, and it provides behavior management techniques and communication tactics. If your new dog shows aggression, this guide helps you understand where they fall on the spectrum and how to act appropriately.
• Home-Prepared Diets for Dogs, Part Four: The Finer Points of a Home-Prepared Diet: This ebook covers the critical nuances of preparing a healthy home-prepared diet, including important details for putting the finishing touches on this lifestyle. If you plan to home-prepare your dog’s food, this guide helps you avoid nutritional gaps after your dog has settled in.