Here is the truth nobody tells you when you first see that positive test.
You do not need to buy anything right now. You have nine months. The tiny humans are not going anywhere and neither are the shops. Take a breath.
But you also do not want to be sprinting around at 37 weeks trying to assemble a crib and stockpile diapers while your back aches and your ankles look like they belong to someone else. So there is a middle ground and this guide is it.
Here is exactly what to buy, when to buy it, and what to leave until you actually know whether you need it.
First Trimester: Research, Not Shopping
Weeks 1 to 12 are not the time to fill a nursery. For most parents, this is the time to sit with the news, manage symptoms, and get through the early appointments before telling anyone.
Many parents wait until after twelve weeks to buy anything at all. There is an emotional reason behind this. Miscarriage risk drops significantly after the first trimester and for parents who have experienced pregnancy loss before, buying things too early can feel genuinely painful if something goes wrong. That is a valid and personal decision. Nobody should tell you when the right time is to let yourself feel excited.
What you CAN do in the first trimester:
Research everything. A car seat purchase is not a ten-minute decision. Neither is a pram, a crib, or a baby monitor. These items have safety ratings, compatibility requirements, model updates, and hundreds of reviews worth reading. Doing this research in the first trimester means when you are ready to buy in the second, you already know exactly what you want. You are not making rushed decisions under third-trimester exhaustion.
Set up a baby registry. Even if you are not ready to tell people yet, most registry platforms let you create a private list you can share when the time is right. Start adding items now. Refine the list over the coming weeks. When the shower comes, it is ready.
Stock up on household consumables. Laundry detergent. Shampoo. Dish soap. Toilet paper. The things you will be buying anyway for the next several months. Buying in bulk now frees up budget later when you actually need it for baby items. Not glamorous at all. Very sensible.
Start prenatal vitamins immediately. This is not a shopping tip. It is health advice. But if you are buying anything in the first trimester, it is these.
Second Trimester: This Is When You Actually Start Shopping
Weeks 13 to 27 are when most parents feel good enough to enjoy the process of preparing for a baby. Energy returns. Morning sickness eases. The bump is visible and the pregnancy feels real and celebratory.
Start here. Not before.
The Big Ticket Items Come First
These are the items that require research, delivery lead times, and sometimes assembly. Buy them in the second trimester so you are not panicking about a delayed crib in week 38.
The car seat. Non-negotiable and absolutely the first thing to buy. You will not be able to leave the hospital or birthing centre without a correctly installed one. Research infant carriers versus convertible seats based on your circumstances. Buy it. Install it. Have the installation checked if your hospital or a local service offers car seat checks.
The pram or travel system. One of the biggest decisions you will make. Think about where you live, how you use public transport, whether you have a car, what terrain you walk on, and how much boot space you have. Go to a shop and physically push a few before buying. What looks beautiful on Instagram can be a nightmare to steer on an actual pavement.
The crib or bassinet. Whatever your baby will sleep in for the first months needs to meet current safe sleep guidelines. A firm, flat mattress with no soft bumpers, pillows, or loose bedding. Look at bedside bassinets if you want to keep baby close without bed-sharing. Order early enough that it arrives and is assembled before the third trimester hits.
The nursing chair or feeding chair. You will spend a significant amount of time in this chair. It needs to be comfortable enough for a 3am feed when you have barely slept. Sit in it before you buy it if at all possible.
Have Your Baby Shower Before You Buy Everything Else
This sounds obvious. It is not, because excitement is a powerful force that makes people buy onesies at 14 weeks.
Wait until after your shower to buy most things. You will receive a significant amount as gifts. Friends and family will come through with items on your registry. If you have already bought everything, they have nothing to buy you and you have duplicates of things you did not need multiple of.
Set the registry. Attend the shower. Then fill the gaps with your own purchases.
What to Start Buying in the Second Trimester
After the big ticket items and the shower, fill in with:
- Diapers in size one and two, not newborn. Stock a reasonable supply before the birth. They do not expire.
- Baby wipes, unscented
- Fragrance-free baby laundry detergent to wash all the tiny clothes before they are worn
- A white noise machine. This item makes a real difference to newborn sleep and you will want it from day one.
- A basic first aid kit: thermometer, nasal aspirator, baby nail file and scissors, medicine dropper
- Feeding supplies based on your plan: bottles and steriliser if bottle feeding, nursing pillow and breast pump if breastfeeding
Third Trimester: Final Gaps and Nesting
Weeks 28 to 40 are the home stretch. By now your big items should be sorted. This trimester is about finishing, not starting.
Wash and Organise Everything
Wash every item of clothing, every sheet, every swaddle blanket in baby-safe detergent before it touches your baby. Newborn skin is sensitive and fabric that has been sitting in packaging is not ready to wear.
Organise by size. Label drawers or storage bins by age range. When your baby sizes out of 0 to 3 months at 2am and you need something bigger immediately, knowing exactly where the 3 to 6 month clothes are matters.
Pack Your Hospital Bag by Week 36
Not week 38. Week 36. Some babies decide to arrive before their due date with no warning whatsoever.
Both parents need bags. The mama’s bag has her essentials, the baby’s coming home outfit, and postpartum supplies. The birth partner’s bag has their overnight essentials. Both bags go by the front door or in the car when they are packed. Not in a wardrobe somewhere to be located urgently at midnight.
The Nursery
Get it done in the third trimester rather than the final weeks. Painting and assembling furniture while very pregnant is not fun. Painting and assembling furniture at 36 weeks is significantly less fun than at 30 weeks.
The nursery does not need to be Pinterest-perfect. It needs a safe sleep space, a changing area with supplies within reach, somewhere to store clothes, and somewhere comfortable for the overnight feeds. Everything else is decoration.
Wait on These Until After the Birth
Some items are genuinely impossible to know whether you need until your specific baby arrives.
Swings and bouncers. Some babies love a swing. Some babies find it the most offensive thing that has ever been placed beneath them. Buying one before the birth is a gamble. Wait two weeks and let your actual baby weigh in.
Specific bottle brands. If you plan to bottle feed, you will not know which teat flow rate or bottle shape your baby tolerates until you try. Start with a small selection. Buy more of what works.
Specific dummy or soother brands. Same logic. Babies have very strong opinions about these. Buy two or three different shapes. Discover which one your baby accepts. Then stock up on that one.
Large quantities of newborn clothing. A small handful of newborn outfits is fine. Stocking an entire wardrobe of them is a common and expensive mistake. Many babies skip newborn size entirely. Those that fit it outgrow it in two to three weeks.
What to Buy and When: The Quick Reference
First trimester: Research everything. Set up the registry. Stock household consumables. Start vitamins.
Second trimester: Car seat. Pram. Crib. Feeding chair. Have the shower. Then buy diapers, wipes, white noise machine, laundry detergent, basic first aid kit, feeding supplies.
Third trimester: Wash and organise everything. Pack hospital bags by week 36. Finish the nursery. Fill any genuine gaps after the shower gifts are assessed.
After the birth: Swings, bouncers, specific bottle brands, specific dummy brands, quantities of anything you were not sure about before meeting your actual baby.
One More Thing
You will feel pressure to have everything ready before the birth. Every article, every checklist, every well-meaning relative asking whether the nursery is done yet will add to that pressure.
The truth is you need very little for the first days. A safe place to sleep. A way to feed. Something to wear. A way to get home from the hospital.
Everything else can wait until you know your baby. Buy the essentials. Let the shower happen. Fill the gaps. Give yourself permission to figure out the rest as you go.
Parents have been doing exactly that forever. You will be fine.
Wrapping It Up
The second trimester is your window. That is when the energy is there and the urgency is real enough to make it feel meaningful without being last-minute panic.
Research in the first. Buy what matters in the second. Finish and organise in the third. Wait on the rest until the baby tells you what they actually need.
You have got more time than it feels like. Use it well.