40 Weeks Pregnant: What to Expect and Top Tips for You
Congratulations, you’ve reached week 40 – your due date! This is an incredible milestone, and while your baby might be fashionably late, they’ll be here before you know it. Let’s explore what’s happening this week and how to stay calm and prepared.
Baby at 40 Weeks: Fully Developed and Ready
Your baby is now about the size of a small pumpkin, measuring around 48-56cm from head to heel and weighing approximately 3.2-4.1kg. Here’s what’s happening with your little one this week:
- Fully developed organs: Baby’s organs are ready to function independently outside the womb.
- Layer of fat: Baby has built up fat to keep warm after birth.
- Lanugo gone: Most of the fine hair covering baby’s body has disappeared, though some might remain on the shoulders or back.
- Movements: You may notice fewer but stronger movements as space is extremely tight.
- Head position: Most babies are head-down and engaged in the pelvis, ready for delivery.
Your baby is ready to meet you and is just waiting for the right moment to arrive!

Your Body: What to Expect at Week 40
As you reach your due date, your body is in full preparation mode for labour. Here are some common symptoms and changes:
- Braxton Hicks contractions: These practice contractions may feel stronger and more frequent.
- Pelvic discomfort: Baby’s position can create increased pressure and aches in your lower abdomen and pelvis.
- Cervical changes: Your cervix is likely dilating and thinning in preparation for labour.
- Fatigue or energy bursts: You might feel exhausted or experience bursts of energy (known as nesting).
- Mucus plug loss: You may notice a thick discharge, often tinged with blood, as a sign that labour is near.
Every sensation and change is your body’s way of getting ready for the big event.
Top Tips for Week 40
Here’s how to stay calm, comfortable, and prepared this week:
- Be Patient: Remember, only 5% of babies are born on their actual due date. Your baby will come when they’re ready.
- Keep Moving: Gentle walks or stretches can help ease discomfort and encourage labour to start naturally.
- Stay Hydrated: Drinking plenty of water helps keep you energised and supports your body during labour.
- Rest and Relax: Take naps when you can and practise deep breathing or meditation to manage anxiety.
- Check Your Bag: Double-check your hospital bag to ensure you have everything you need for yourself and baby.
- Talk to Your Midwife: If your baby hasn’t arrived yet, your midwife may discuss induction options with you.
- Monitor Movements: Keep tracking baby’s activity, and let your doctor know of any changes.
- Enjoy the Moment: Take time to bond with your bump and reflect on your incredible journey.
Fun Fact: Baby’s Hair and Nails Are Growing
At 40 weeks, your baby might have a full head of hair and tiny fingernails that extend beyond their fingertips. They’re ready to meet the world!
When to Call Your Doctor
Contact your healthcare provider if you experience:
- Regular contractions that last 60 seconds and are 5 minutes apart.
- Heavy bleeding or unusual spotting.
- Decreased or no fetal movements over a day.
- Fluid leakage, which could indicate your water has broken.
- Severe swelling in your face, hands, or feet, which could signal pre-eclampsia.
Your midwife or doctor is always there to support you, so don’t hesitate to call with any concerns.
Look Ahead: What’s Next?
If your baby doesn’t arrive this week, don’t worry! Most pregnancies last between 38 and 42 weeks. Your healthcare provider will keep a close eye on you and baby and discuss next steps if labour doesn’t start naturally.
You’ve done an incredible job, mum-to-be! Take a deep breath, stay positive, and get ready to meet your baby very soon. You’ve got this!
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