The first week with a new pet is nothing like the rest of the time you'll spend together, and it helps to know that going in.
Your new dog or cat has just left everything familiar behind. The smells are different, the sounds are different, and the people are different too. Even if this new life is a good one, it still takes time to figure that out.
So don't expect the confident, playful, fully-settled version of your pet on day one. That pet is coming. They're just not here yet.
Day One: Keep It Quiet
Resist the urge to make the first day a big event.
Show your pet where their food, water, and toilet area are, then let them explore at their own pace. If your dog wants to sniff every corner of the house for twenty minutes, let them. If your cat vanishes under the bed the moment they arrive, leave them there.
Skip the visitors for now. Everyone will get their turn to meet the new arrival, but a quiet house on day one makes a real difference.
Don't Take It Personally if They Hide or Avoid You
Some pets act like they've lived with you for years within a few hours. Others need a lot longer, and that's completely normal too.
A cat that spends the first two days under the couch isn't rejecting you. A dog that won't make eye contact isn't being difficult. They're just processing a lot of change at once, and pulling back is often how animals cope with that.
Give them space instead of forcing interaction. Sit nearby, talk softly, and let them decide when they're ready to come closer.
Get a Simple Routine Going Early
By day two or three, start settling into a basic routine, even a loose one.
Feed them at roughly the same times each day. Take dogs out for walks and toilet breaks on a consistent schedule. Keep the litter box, food, and water in the same spot so your cat always knows where to find them.
Pets don't need a complicated schedule this early on. They just need enough repetition to start predicting what happens next, which is one of the fastest ways to help them feel secure.
Watch Their Eating and Toilet Habits
It's common for a new pet to eat less than usual during the first few days. Stress can do that, and it's usually nothing to worry about as long as they're drinking water and otherwise seem okay.
Keep an eye on things, though. If they go more than a day or two without eating at all, or if you notice vomiting, diarrhoea, or other symptoms that concern you, call your vet rather than waiting it out.
Accidents in the house are also common this week, even with pets who are usually well trained. A new environment can genuinely throw off habits they'd otherwise have down perfectly.
Book (or Keep) That First Vet Visit
If you haven't already scheduled a check-up, get it booked for sometime in this first week or two.
Bring any paperwork you have, vaccination records, medical history, adoption documents, so your vet has a full picture from the start. This is also a good moment to ask questions about food, parasite prevention, and anything specific to your pet's age or breed.
Let Their Personality Show Up Gradually
Try not to draw conclusions about who your pet is based on the first few days.
The quiet, cautious dog you brought home might turn out to have far more energy than you expected once they're comfortable. The cat who wouldn't come near you might eventually decide your lap is their favourite place in the house.
It works the other way too. A pet who seemed relaxed at the shelter might show some nervousness once the novelty wears off. None of this means anything went wrong. It usually just means you're starting to see more of who they really are.
Introducing Other Pets Takes Patience
If you already have an animal at home, keep introductions slow this week rather than rushing to get everyone comfortable together.
Short, supervised meetings work better than long unsupervised ones. Watch their body language closely, and don't be discouraged if it takes several days before anyone seems relaxed around each other.
Some pets become fast friends. Others simply learn to share the house peacefully, which is just as much of a win.
Signs You're Doing Fine (Even if It Doesn't Feel Like It)
It's easy to worry that you're getting something wrong this week, especially if your pet seems stressed or withdrawn.
Look for small signs instead of big ones. Are they eating a little more each day? Spending slightly less time hiding? Willing to sit in the same room as you, even if they're not asking for attention yet? Those are all good signs, even when the overall picture still looks uncertain.
What Not to Worry About Yet
A few things that feel alarming in the first week are usually just part of adjusting:
- Eating less than normal, as long as they're drinking water
- Hiding for long stretches, especially with cats
- Occasional accidents despite prior house training
- Seeming unusually quiet or withdrawn
- Sleeping more than you expected
If any of these continue well past the first week, or seem severe from day one, it's worth checking in with your vet just to be safe. But on their own, in this early window, they're common enough not to panic over.
This Week Is About Trust, Not Training
There will be time later for teaching commands, building better habits, and working through anything that needs more attention.
Right now, the job is simpler than that. Keep things calm, keep the routine predictable, and let your pet learn that this house is safe. Everything else follows from there.