The 3-3-3 rule
Many shelters use the 3-3-3 rule as a rough guide. Every dog is different, but it helps set expectations.
- First 3 days: your dog may feel overwhelmed. It might hide, not eat much or seem shut down. That's normal.
- First 3 weeks: your dog starts learning the routine and showing more personality, including some behavior you'll need to work on.
- First 3 months: most dogs feel at home, trust you and settle into the routine.
Before you bring your dog home
- Set up a quiet space with a bed or crate where your dog can rest undisturbed.
- Get the same food the shelter used, so meals stay familiar.
- Put an ID tag with your phone number on the collar before leaving the shelter.
- Ask the shelter for all medical records, and put them in one place.
The first days
- Keep things quiet. Hold off on visitors, dog parks and big outings.
- Stick to a routine for meals, walks and potty breaks.
- Let your dog come to you. Don't force cuddles. Calm, patient attention builds trust.
- Use a secure harness and leash. New dogs can bolt when scared.
- Book a vet checkup in the first couple of weeks.
Common mistakes to avoid
- Too much, too soon: lots of new people, places and dogs at once
- Leaving a new dog alone for long stretches right away
- Expecting perfect house training on day one, even from adult dogs
Not sure how old your rescue is? Your vet can estimate it, and our dog age calculator shows the human-year equivalent.
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Questions people ask
What is the 3-3-3 rule for rescue dogs?
A rough guide for settling in: the first 3 days are often overwhelming, by 3 weeks your dog learns the routine, and by 3 months most dogs feel at home.
Is it normal for a rescue dog not to eat at first?
A day or two of low appetite can be normal while a dog adjusts. If it lasts longer, or your dog seems unwell, call your vet.
How long does it take a rescue dog to adjust?
Many dogs feel settled within about three months, but some take longer. Patience and a steady routine help most.
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The Paw Plan shares general information, not veterinary advice. Every pet is different, so check with your vet about your pet's health, diet and care.