What should you do during a new pet’s first week?
Give the animal a small safe base, a predictable routine, gradual introductions, and a simple observation log before expanding the household.

Start with a small, predictable world
The first week with a new animal is not a test of obedience. It is a settling period: provide a safe base, keep the routine legible, observe eating and toileting, and introduce people, rooms and resident animals gradually. A checklist helps you notice a change without turning every unfamiliar behaviour into a diagnosis.
| First-week job | Practical setup | Escalate when |
|---|---|---|
| Safe base | Quiet room or defined zone, water, food, bedding and escape space. | The animal cannot access water, is repeatedly trapped or shows injury. |
| Routine | Same meal, rest, toilet and interaction windows with a short daily log. | Eating, drinking, toileting or breathing changes persist. |
| Introduction | Scent and barrier steps before direct contact with resident animals. | There is repeated chasing, fighting, panic or unsafe access. |
The seven-day record
- Before arrival, remove hazards, secure doors and windows, identify the nearest veterinary service and prepare identification paperwork.
- On day one, limit the animal to its safe base. Let it choose contact; do not invite a parade of visitors.
- Record food, water, urine, stool, sleep, play, hiding and any medication already prescribed. Use observations, not guesses.
- Keep introductions short and reversible. For a dog, use calm decompression walks; for a cat, preserve vertical and hiding options.
- Book or confirm the first veterinary visit according to the adoption record and local advice. Bring questions and documentation.
- Review the log on day seven: what is becoming easier, what remains stressful, and what needs professional help?
Example: a home with a resident pet
Keep the newcomer and resident animal separated at first, exchange scent safely, then use a barrier for short calm observations. If either animal cannot eat, rest or disengage, return to separation. Do not interpret forced proximity as socialisation. Progress is measured by recovery and ordinary routine, not by one dramatic greeting.
Boundary: this is a settling checklist, not veterinary diagnosis or behaviour treatment. Breathing difficulty, collapse, suspected poisoning, serious injury, prolonged refusal of food or water, or a sudden concerning change needs prompt veterinary advice.
Use the routine-change guide after the first week and the emergency-kit guide to prepare the home without inventing medical instructions.
Sources: ASPCA: tips for a new dog; International Cat Care: helping a new cat settle.