The third trimester is an exciting, emotional, and sometimes overwhelming time. As your due date approaches, it’s completely normal to feel a mix of anticipation and “Am I ready for this?” energy. That’s exactly where a well-organized Third Trimester Checklist becomes your best friend.
Whether you’re a first-time mom or adding another little one to your family, this comprehensive guide will walk you through everything you need to do before baby arrives—from preparing your home and hospital bag to taking care of your body and mental health.
Let’s break it all down into manageable, stress-free steps.
Table of Contents
What Is the Third Trimester?
The third trimester spans from week 28 through delivery. During this time, your baby grows rapidly, and your body prepares for labor and birth.
This is also your final window to:
- Get organized
- Finish baby prep
- Prioritize rest and self-care
- Tie up loose ends before life changes in the best way possible
Why You Need a Third Trimester Checklist
A structured Third Trimester Checklist helps you:
- Stay organized and reduce anxiety
- Avoid last-minute scrambling
- Ensure nothing important gets overlooked
- Feel more confident heading into labor and postpartum
Think of it as your roadmap to a smoother transition into motherhood.
The Medical & Logistics Checklist
Your third trimester (Weeks 28–40+) involves a lot of doctor visits. This is the time to bridge the gap between “pregnant person” and “parent.”
Finalize Your Birth Plan
Think of this as a “Birth Preferences” list. Discuss it with your OB-GYN or midwife. Do you want an epidural (or other pain management preferences)? Who is in the room? Do you prefer delayed cord clamping? Having this on paper (and in your hospital bag) ensures your team is on the same page.
Choose a Pediatrician
Most doctors suggest finding a pediatrician by Week 34. Call offices, check insurance compatibility, and ask about their philosophy on things like vaccinations and after-hours care.
Take all the New Parent the Classes
If you haven’t already, sign up for:
- Childbirth Education: To understand the stages of labor.
- Breastfeeding/Feeding Basics: To learn the “latch” before the pressure is on.
- Infant CPR: A non-negotiable for peace of mind.
The Group B Strep (GBS) Test
Usually performed between weeks 35 and 37. It’s a simple swab, but essential for baby’s safety during delivery.
Learn the Signs of Labor
Distinguish between Braxton Hicks (false labor) and the real deal. If contractions are regular, intensifying, and don’t stop when you move, it’s likely time.
The Ultimate Hospital Bag Checklist
Pack your bag by Week 36. You don’t want to be hunting for your favorite leggings while your water is breaking.
For You:
- The “Going Home” Outfit: Choose something loose. You will likely still look about six months pregnant—embrace the maternity leggings!
- Nursing bras: Plan for breastfeeding.
- Toiletries: Pack your own shampoo (or dry shampoo), hair conditioner, body and face lotion, face wash, lip balm (hospitals are notoriously dry), and a hair tie.
- Extra-Long Phone Charger: Hospital outlets are never where you need them to be.
- Postpartum Essentials: The hospital provides mesh undies, but many moms prefer bringing their own high-waist postpartum underwear or adult diapers for extra comfort.
For Baby:
- Car Seat: You cannot leave the hospital without one. Ensure it is installed and that you know how to adjust the straps.
- Two Outfits: One in “Newborn” size and one in “0-3 Months.” You never know how big that “little” human will be!
- A Swaddle or Blanket: For the chilly ride home.
Third Trimester Checklist: Baby Preparation
Set Up the Nursery (or Baby Space)
You don’t need a Pinterest-perfect nursery—just a safe, functional space.
Essentials to have ready:
- Crib or bassinet (with fitted sheets)
- Changing table or designated changing area
- Diapers and wipes
- Baby clothes (washed and organized)
- Swaddle blankets
- White noise machine (optional but helpful)
Safe Sleep Space
Whether it’s a crib, bassinet, or play-yard, ensure it meets 2026 safety standards. Firm mattress, fitted sheet, and nothing else (no pillows, bumpers, or stuffed animals).
Pro Tip: Keep things simple. Babies don’t need much at first, but having basics within reach makes those early days easier.
Install the Car Seat
This is one of the most important items on your Third Trimester Checklist.
- Choose an infant car seat
- Install it properly (many local fire stations offer free checks)
- Practice adjusting straps and buckles
Important: You won’t be able to leave the hospital without a properly installed car seat.
Stock Up on Baby Essentials
Avoid middle-of-the-night store runs by preparing ahead.
Must-have supplies:
- Newborn and size 1 diapers
- Baby wipes
- Burp cloths
- Bottles (even if you plan to breastfeed)
- Formula (just in case)
- Baby thermometer
- Nail clippers or file
The Diaper Station
Stock up on at least two jumbo packs of Newborn and Size 1 diapers. Have wipes and diaper rash cream (look for zinc oxide-based) within arm’s reach.
Wash Baby Clothes and Linens
Use a fragrance-free, gentle detergent to wash baby clothes, sheets, and burp cloths. Tiny skin is sensitive!
- Baby clothes
- Swaddles
- Crib sheets
- Towels
Organize items by size so you can easily grab what you need.
Note: Dreft Laundry Detergent is often marketed for newborn babies, but can actually have a lot of artificial fragrances (not ideal for sensitive skin!). Make sure to read the label closely.
More to Note About the Nursery & Home Preparation
You don’t need a Pinterest-perfect nursery, but you do need a functional “Baby Command Center.”
Safe Sleep Space
Whether it’s a crib, bassinet, or play-yard, ensure it meets 2026 safety standards. Firm mattress, fitted sheet, and nothing else (no pillows, bumpers, or stuffed animals).
The Diaper Station
Stock up on at least two jumbo packs of Newborn and Size 1 diapers. Have wipes and diaper rash cream (look for zinc oxide-based) within arm’s reach.
Wash Everything
Use a fragrance-free, gentle detergent to wash baby clothes, sheets, and burp cloths. Tiny skin is sensitive!
Stock the Pantry and Freezer with Ready to Eat Meals
This is the most underrated part of the third trimester checklist.
- Postpartum Freezer Meals: Think freezer-friendly beef chili, enchiladas and protein pancakes.
- One-Handed Snacks: Nursing or holding a baby makes two-handed eating impossible. Think protein granola, lactation cookies and yogurt bark.
- Paper Goods: Stock up on toilet paper, paper towels, and paper plates to minimize chores during the first two weeks.
Staying on Track with Prenatal Visits
As you enter the third trimester, your “dates” with your OB-GYN or midwife will become much more frequent. This increased monitoring is designed to keep a close eye on your blood pressure, the baby’s growth, and your overall physical readiness for labor.
Increasing Amount of Prenatal Office Visits
Typically, around Week 28, your appointments will move from monthly to every two weeks. Once you hit Week 36, you’ll likely see your provider every single week until the baby arrives.
Routine Checks
At every visit, expect the “standard” routine: a weight check, a blood pressure reading, and a urine sample to screen for signs of preeclampsia or gestational diabetes. Your provider will also measure your fundal height (the distance from your pubic bone to the top of your uterus) to ensure the baby is growing at a steady pace.
Positioning and Heart Rate
Your provider will palpate your abdomen to determine the baby’s position. By Week 36, they are looking to see if the baby is head-down (vertex). They will also use a Doppler to listen to the baby’s heartbeat, which is always a highlight of the visit!
The Tdap Vaccine
Usually administered between Weeks 27 and 36, this vaccine protects your newborn from whooping cough (pertussis) before they are old enough to receive their own vaccinations.
Internal Checks
In the final weeks, your provider may offer internal exams to check for cervical effacement (thinning) and dilation (opening). While these are often optional, they can provide a glimpse into how your body is preparing for the big day.
These frequent visits are the perfect time to ask those last-minute questions about your birth plan or any late-pregnancy symptoms you’re experiencing. Keep a running list on your phone so you don’t forget them in the moment!
Monitor Baby’s Movement: Kick Counts
As your baby grows and space in the womb becomes a bit more cramped, the nature of their movements might change, but they should remain consistent. Starting around Week 28, many healthcare providers recommend doing daily kick counts to monitor your baby’s well-being.
- Establish a Routine: Choose a time of day when your baby is usually most active—often right after you’ve eaten a meal or a snack.
- The Method: Find a comfortable spot to sit or lie on your side. Time how long it takes to feel ten distinct movements (kicks, flutters, rolls, or pokes).
- What to Look For: Ideally, you want to feel ten movements within two hours, though many babies will reach that number much faster.
- Trust Your Gut: If you notice a significant decrease in movement or if it takes much longer than usual to reach ten counts, don’t hesitate to call your OB-GYN or midwife. It is always better to go in for a quick monitoring session for peace of mind.
Embracing the Nesting Instinct
Around the 35th or 36th week, you might wake up with a sudden, inexplicable urge to scrub your baseboards with a toothbrush or color-coordinate your spice rack. This is nesting—a powerful hormonal surge designed to help you prepare your “den” for the new arrival.
While it can be a productive phase, the key is to channel that energy without overextending yourself.
The Deep Clean
Focus on the “high-touch” areas. Sanitizing door handles, remote controls, and light switches can make you feel more secure about bringing a newborn home. If you have the budget, this is the perfect time to hire a professional cleaning service for a “top-to-bottom” scrub so you can save your energy for labor.
Decluttering for Sanity
Newborns come with a surprising amount of gear. Use your nesting energy to clear out “junk drawers” or closets to make room for strollers, swings, and diaper boxes. A clutter-free environment can significantly lower your stress levels during those first few weeks at home.
Setting Up “Nursing Stations”
Nesting isn’t just about cleaning; it’s about strategy. Set up small baskets in the rooms where you’ll likely spend the most time (the nursery, the living room, and your bedroom). Fill them with:
- Fresh burp cloths.
- A spare phone charger.
- A large water bottle.
- Healthy, shelf-stable snacks.
Safety First
In the height of a nesting surge, it’s easy to forget your physical limits. Avoid heavy lifting and stay off ladders. If you’re painting the nursery, ensure the room is well-ventilated and use Low-VOC or No-VOC paints to keep the air quality safe for both you and the baby.
Nesting is your body’s way of saying “the time is near.” Lean into the urge to organize, but remember that a perfectly organized sock drawer is less important than a well-rested parent. If the instinct doesn’t hit you? Don’t worry—some people “nest” by napping, and that is just as valid!
Plan Your Maternity Leave
Whether you are self-employed or work for a company, finalizing your maternity leave plan is a crucial component of your third trimester checklist. Taking the time to set clear boundaries now will allow you to fully transition from “work mode” to “baby mode” without lingering professional stress.
Finalize Your Timeline
Aim to have your official “hand-off” date set by Week 34 or 35. This gives you a buffer in case the baby decides to make an early appearance. Clearly communicate this date to your team or clients so they know exactly when you will be stepping away.
The Hand-Off Document
Create a comprehensive guide for whoever is covering your duties. Include login credentials, project statuses, and a list of key contacts. If you manage digital content or social media, consider batching and scheduling your posts or articles a month in advance so your platforms stay active while you rest.
Set Communication Boundaries
Decide ahead of time how much—if at all—you want to be contacted. It is perfectly okay to set an “Out of Office” reply that directs all inquiries to a colleague and explicitly states that you will not be checking emails until a specific date.
Review Your Health and Coverage Benefits
Double-check your paperwork regarding paid leave, disability insurance, or FMLA. Ensure you know exactly what forms need to be submitted once the baby is born to trigger your benefits, and keep those documents in an easy-to-find folder.
The Slow Return
If possible, discuss a “phased-in” return to work. Starting back part-time or with a flexible schedule for the first few weeks can make the transition much smoother for both you and your little one.
Handle Important Paperwork Beforehand
The last thing you want to do while in the midst of contractions is fill out forms or argue with an insurance representative. Tackling the “business end” of pregnancy now ensures a much smoother transition into parenthood.
Add Baby to Your Insurance Plan
Most insurance providers consider birth a “Qualifying Life Event,” giving you a special enrollment window (typically 30 to 60 days) to add your newborn.
The Process: Call your provider now to find out what documentation they require. Most will need a birth certificate or a “proof of birth” letter from the hospital.
Pro Tip: Your baby is often covered under the mother’s plan for the first 30 days, but you must officially enroll them to avoid a gap in coverage or unexpected bills for that first well-baby checkup.
Pre-Register at Your Hospital
Most hospitals allow you to pre-register online or via phone. This gets your insurance information, emergency contacts, and consent forms into their system ahead of time. When you arrive in labor, you can skip the clipboard and head straight to a room.
Review Pediatrician Options
Don’t wait until you’re leaving the hospital to pick a doctor.
- Schedule a “Meet and Greet”: Many offices offer short prenatal consultations. Ask about their after-hours care, which hospitals they are affiliated with, and their philosophy on topics like breastfeeding and vaccinations.
- Logistics: Check if the office is close to home and if they offer same-day sick appointments—those are life-savers during stressful parenting days.
Staying Comfortable for the Final Weeks
The third trimester isn’t just about “doing”; it’s about surviving the physical toll.
The Pregnancy Pillow
If you don’t have one, now is the time. It helps align your hips and supports that growing bump.
Hydration Station
Get a giant, insulated water bottle. Staying hydrated can actually help reduce some of the late-pregnancy swelling and Braxton Hicks. Try electrolyte salt packets like LMNT to stay fully hydrated (especially if you’re planning on breastfeeding).
Movement
Light walking or prenatal yoga can keep your joints loose and help the baby drop into the optimal position for birth.
Rest
This is your permission slip. Take the nap. The laundry can wait; your body is literally building a nervous system and a skeleton.
Don’t Forget to Celebrate This Pregnancy Season
While the third trimester checklist is often dominated by logistics and “to-do” items, it is equally important to make space for joy. These final weeks represent the end of one chapter and the beginning of another; taking the time to pause and celebrate will help you feel emotionally grounded before the big day.
Capture the Glow with Maternity Photos
Whether you book a professional photographer for a sunset session or have your partner snap some candid shots in the backyard, you will want to remember this incredible transformation. Focus on the strength of your body and the anticipation of meeting your little one.
Plan a Baby Shower, Gender Reveal or “Sprinkle”
Whether it is your first baby or your third, every new life is worth celebrating. A “sprinkle” is a low-key way to gather with your closest friends for brunch or tea, focusing more on community and support than a massive pile of gifts. And of course a gender reveal party spills the beans on whether you’re having a boy or girl.
Savor a Final Date Night
Before your evenings are dictated by feeding schedules, head out to your favorite local restaurant or enjoy a quiet movie night at home. Focus on connecting with your partner and talking about things other than nursery paint colors or car seat safety.
Spend Quality Time with Older Children
If you have older kids, this transition is a big deal for them, too. Plan a special “big sibling” date—like a trip to the park or a movie afternoon—to soak up those final moments as a smaller family unit. These memories will help them feel secure and loved as they prepare for their new role.
Postpartum Prep: Caring for You (the Mama) After Baby Arrives
The “Fourth Trimester” is real. Your body needs as much care as the baby.
The “Vaginal Recovery” Kit
If having a vaginal birth, stock your bathroom with:
- Peri Bottle: For gentle cleansing.
- Witch Hazel Pads: For soothing inflammation.
- Pain Relief Sprays: Ask your doctor for recommendations.
Breastfeeding Supplies
If you plan to nurse, have nipple cream (lanolin or organic alternatives) and nursing pads ready.
Support System
Identify your “Village.” Who can you call at 3:00 AM? Who is willing to bring a hot meal and not expect to hold the baby for three hours? Set these boundaries now.
Plan a Postpartum Meal Train
Setting up a postpartum meal train—using a tool like MealTrain.com—allows friends and family to sign up for specific dates to drop off nourishing, home-cooked dishes, ensuring your fridge stays stocked during those first few weeks of recovery.
Babysitting Help for Older Kids
Arrange for a trusted family member or a local sitter to be on standby for your older siblings, ensuring they have a fun, routine-filled environment while you are at the hospital (or even during postpartum).
Final Thoughts: Your Third Trimester Checklist Made Simple
Preparing for a baby doesn’t have to feel overwhelming. With a clear, step-by-step third trimester checklist, you can focus on what really matters—welcoming your little one into a calm, prepared, and loving environment.
Give yourself grace during this season. You don’t have to do everything perfectly. The most important thing you can do is take care of yourself and get ready to meet your baby.
