Preparing for Baby: A Month-by-Month Checklist

Preparing for Baby: A Trimester-by-Trimester Checklist

Pregnancy is roughly 40 weeks of admin, planning, and emotional weather, all wrapped around the small miracle of growing a person. Having a rough timeline of what to think about — and when — can be the difference between feeling prepared and feeling permanently behind.

This checklist breaks the next nine months into manageable chunks, organised by trimester with rough month-by-month markers. The idea isn’t to do everything on the list — it’s to know what’s coming, so you can pick what matters to you and skip what doesn’t.

A quick note before we start: every pregnancy is different. If you’re high-risk, expecting multiples, or your circumstances are unusual, your timeline may look different. This is a general framework, not a prescription.

The first trimester (weeks 1–13): Quietly getting your bearings

The first trimester is when almost everything important is happening invisibly. You may feel exhausted, nauseous, and overwhelmed — and you probably haven’t told most people yet. The goal of these months is to set up the basics, not to start buying things.

Month 1–2 (weeks 4–8): The essentials

• Confirm your pregnancy and book in with your GP or midwife. In the UK, you’ll be referred for a “booking appointment” with a midwife around weeks 8–10. In the US, your first OB or midwife visit is usually around weeks 8–12.
• Start (or continue) a prenatal vitamin with at least 400 mcg of folic acid and 10 mcg of vitamin D. Ideally you’d already have started before conception, but if not, start now.
• Cut out anything you need to cut out — alcohol, smoking, certain medications, high-risk foods (raw fish, soft cheeses, pâté, unpasteurised dairy). If you take prescription medication, ask your GP whether anything needs adjusting.
• Note down the date of your last period. Your healthcare provider will ask for this to calculate your due date.

Month 3 (weeks 9–13): Tell who you want to tell, start learning

• Decide who to tell, and when. Many people wait until after the 12-week scan, but there’s no rule — tell whoever you want, whenever you want.
• Have your dating scan (usually around weeks 11–14 in the UK; earlier in the US). This gives you a confirmed due date and screens for some early conditions.
• Start reading or listening. A few well-chosen books or podcasts beat scrolling endlessly through forums. Look at Expecting Better by Emily Oster, The Positive Birth Book by Milli Hill, or whatever resonates with you.
• Tell your employer if and when you’re ready. You don’t legally have to disclose in the UK until 15 weeks before your due date, but earlier disclosure can help with workplace risk assessments if your job involves anything physical or chemical.
• Start a rough budget conversation. Not a full plan — just an honest look at parental leave, childcare costs in your area, and any one-off purchases coming up. Knowing roughly what’s ahead makes the second trimester less stressful.

The second trimester (weeks 14–27): The planning sweet spot

The second trimester is when most people feel best — nausea eases, the bump is real but not yet uncomfortable, and you’ve got mental space to actually plan. Use it.

Month 4 (weeks 14–17): Settle in

• Announce more widely if you want to. Many people use the second trimester for wider announcements.
• Book your antenatal classes. NHS classes, NCT in the UK, or hospital-based classes in the US tend to book up fast. Get on the waiting list well in advance.
• Look at maternity wear. Around now is when regular clothes start to get uncomfortable. You don’t need a whole new wardrobe — a few stretchy basics, some maternity jeans or leggings, and a bigger bra will take you a long way. Secondhand is brilliant for maternity clothes since you’ll only wear them for a few months.

Month 5 (weeks 18–22): The anomaly scan and bigger decisions

• Have your 20-week anomaly scan. This is the big detailed scan that checks the baby’s development. You can usually find out the sex here if you want to.
• Start your baby registry (US) or wish list (UK) if you’re having a shower or want to coordinate gifts. Don’t overdo it — newborns need much less than the internet suggests.
• Choose your hospital or birth setting if you have options. Some areas offer choice between hospital, birth centre, or home birth. Tour the facilities if you can.
• Look at childcare, particularly if you’re in a high-demand area. UK nurseries and childminders often have waiting lists of 6–12 months; US daycare waitlists can be just as long. Getting on lists doesn’t commit you to anything but protects your options.

Month 6 (weeks 23–27): Bigger purchases and longer-term decisions

• Research the big-ticket items: pushchair/pram/stroller, car seat, cot/crib, and a place for baby to sleep in your room (cot, Moses basket, bedside crib). You don’t need to buy yet — but knowing what you want avoids panic-buying later.
• Plan parental leave. In the UK, formal notice of maternity leave is required by 15 weeks before your due date (around week 25). In the US, look into FMLA eligibility, your employer’s policy, and any short-term disability coverage.
• Start thinking about a pediatrician or registered GP for the baby. In the US, choose a pediatrician now and ask about meet-and-greets. In the UK, your baby will usually be registered with your GP practice automatically, but you may want to confirm.
• If you’re planning a baby shower or sprinkle, this is when invitations typically go out. Showers usually happen in late second or early third trimester.

The third trimester (weeks 28–40+): Getting ready for arrival

The third trimester is when it all starts feeling real. The bump is unmissable, sleep gets harder, and there’s a growing sense that someone is actually about to arrive. The aim now is practical readiness without exhausting yourself.

Month 7 (weeks 28–31): Buy, build, prepare

• Buy your big items if you haven’t already: pushchair, car seat, sleep space, and a few basic clothes (you’ll be drowning in 0–3 month clothing from gifts, so go light on those).
• Assemble the furniture. Cots, changing tables, and bouncers all take longer than expected. Doing this now means you’re not building a flat-pack at 38 weeks.
• Wash baby clothes, bedding, and muslins in a gentle, non-biological detergent. This is also when many parents do a deep clean of the nursery or sleep space.
• Start your antenatal classes if they haven’t already begun.

Month 8 (weeks 32–35): Logistics and planning

• Write a birth preferences document (sometimes called a birth plan). Keep it short and flexible — it’s a guide for your team, not a contract. Cover pain relief preferences, who you want present, and what you’d like if a C-section becomes necessary.
• Pack your hospital bag. Aim to have it ready by week 36. Pack one bag for labour, one for after, and one for the baby. The internet has many checklists — keep it minimal, you can always send someone home for things.
• Stock up on essentials — nappies (newborn and size 1), wipes, breast pads, maternity pads, snacks, and your own postpartum supplies. Buy fewer newborn nappies than you think — some babies skip the size entirely.
• Install the car seat and get it checked. Many fire stations, retailers, and car seat technicians offer free fitting checks. Don’t leave this until labour day.
• Set up the sleep space properly. Whatever you’ve chosen, make sure it follows safe sleep guidance: firm flat mattress, no loose bedding, baby on their back, in your room for at least the first six months.

Month 9 (weeks 36–40+): The waiting

• Batch-cook and freeze meals. Two weeks of dinners in the freezer is the gift you give your future self. Lasagne, curries, soups, and pasta sauces all freeze well.
• Stock the cupboards and freezer generally, so you’re not doing a big shop in the first weeks.
• Confirm your support network. Who’s coming over and when? Who’s helping with older kids, pets, or food drops? Having this loosely agreed reduces decision fatigue in the first weeks.
• Get older children or pets used to the idea, where relevant. Doll practice for siblings, blanket-with-baby-scent prep for dogs — whatever fits your household.
• Rest, sleep when you can, and lean into the last quiet weeks. Watch the films you want to watch, see the friends you want to see, and don’t feel obligated to be productive. The “nesting urge” is real, but so is the “lie on the sofa for 14 hours” urge — both are valid.
• Know the signs of labour and have a plan for getting to the hospital or birth centre, including back-up if your usual driver isn’t available.

A few things people wish they’d known

• Newborns need surprisingly little. Somewhere to sleep, things to wear, somewhere to be fed, nappies, and you. Everything else is optional.
• Don’t over-buy clothes. Especially newborn size. Babies grow fast and most things get worn three or four times max.
• Secondhand is your friend. Cots, bouncers, baby clothes, books, toys — almost everything except car seats and mattresses is fine to buy used.
• The “nursery” can wait. Babies sleep in your room for the first six months anyway. Don’t stress about Pinterest-perfect rooms.
• Postpartum supplies matter more than baby supplies. Maternity pads, big knickers, nipple cream (if breastfeeding), a peri bottle, paracetamol, and easy snacks. Stock these like you’re preparing for a small siege.

The bottom line

The point of a checklist isn’t to tick every box — it’s to make sure nothing important sneaks up on you. Some of these items won’t apply to you. Some will be doubled up in your antenatal classes. Some will feel impossible when the time comes, and that’s fine.

The single most useful thing you can do across all nine months is the simplest: rest when you can, accept help when offered, and remember that you don’t need to have it all figured out before the baby arrives. Nobody does. They turn up anyway, and you’ll work it out together.

This article is for general information only and isn’t a substitute for medical advice. Always consult your midwife, GP, or healthcare provider about your individual circumstances.