40 Weeks Pregnant
Your baby is the size of a

Welcome to the home stretch of your pregnancy journey. You’ve made it to week 40—congratulations! This is a milestone not just for you, but also for the little bundle of joy you’ve been nurturing all this while. In this article, we’ll guide you through the possible symptoms and changes happening in your body at 40 weeks pregnant, and the signs that labour might be just around the corner. We’ll also give you a peek into how your baby is spending these final days inside your belly at 40 weeks pregnant, and provide tips on how to take care of yourself and get ready for the big day.
Highlights at 40 Weeks Pregnant
At 40 weeks pregnant, your baby could arrive any day now, but they might also prefer a few more days inside your cozy belly. Here are a few highlights from this week:
RELATED PREGNANCY TOOL
Baby Name Generator
Filter by gender:
Filter by theme:
40 Weeks Pregnant: Your Baby’s Development
Your due date is here, and you could meet your little one any day now! But don’t be surprised if they decide to spend a few more days in the coziness of your belly. If you don’t go into labour within a week of your expected due date, your healthcare provider will keep an extra close eye on your baby’s heart rate and movement to be sure that all is well.
How Many Months Is 40 Weeks Pregnant?
Now that you’ve reached the amazing milestone of 40 weeks pregnant, you may be wondering what that is in months. While there are different ways to divide weeks into months, for the purposes of pregnancy, 40 weeks is considered full-term at nine months.
Baby's Size at 40 Weeks Pregnant
At 40 weeks pregnant, the average baby is about the size of a small pumpkin. Babies generally weigh between five and a half and nine and a half pounds at birth (if they’re full-term). Keep in mind that this is just an average—pretty soon, you’ll know your baby’s exact birth weight and length.
Your Baby: What Does 40 Weeks Pregnant Look Like?
Although not every baby is head-down this week, here’s an illustration of how your baby may be positioned at 40 weeks:
Your Body at 40 Weeks Pregnant
Your body has accomplished the incredible task of nurturing and protecting your baby throughout your pregnancy. Read on to learn more about the processes involved during vaginal delivery and a cesarean section.
Vaginal Birth
If you’re having a vaginal birth, when the time comes, you’ll go through three labour stages before you meet your baby.
First Stage
During the first stage, which includes two phases called “early labour” and “active labour,” you will experience cervical effacement, which means your cervix will start to open by stretching and thinning. At this stage, you’ll feel contractions starting in your back area and moving toward your belly. These contractions move your baby lower down into the birth canal.
Although each person’s labour experience is different, some can be in the early labour phase for as many as 14 to 20 hours before progressing to active labour, which is when the cervix dilates about six centimetres. Active labour may last between four and eight hours.
It’s not uncommon to spend most of your early labour at home; your healthcare provider will be able to give you personalized advice as to when you should head to the hospital. If you start to notice the early signs of labour any time around 40 weeks pregnant, try to make the time as relaxing as possible.
You might want to go for a walk or take a warm bath at home, or you could listen to your favourite music or start practicing any breathing techniques you’ve learned in your childbirth education classes. Check out our online birthing classes for in-depth expert information on all stages of childbirth.
Second Stage
Once your cervix is fully dilated (10 centimetres), you’ve made it to the second stage of labour. This is when you’ll be encouraged to push to help move your baby through the birth canal and out into the world.
This part is usually a bit quicker (lasting about half an hour to three hours, on average) but can be more physically demanding and painful than the earlier stage of labour.
Third Stage
Finally, after you deliver your baby, you’ll reach the third and final stage of labour. This is when you’ll deliver the placenta. You’ll probably still feel contractions as the placenta detaches from the uterus and comes out, but this stage is usually quicker and less uncomfortable than delivering your baby.
If you haven’t done this already, you might like to read up on the medical interventions your healthcare provider may recommend or the ones you prefer. These include having an epidural or getting an episiotomy.
Discuss your preferences with your provider in advance or add them to your birth plan. If you’re unsure exactly what your preferences are, ask your provider why such medical interventions may be recommended and what the risks and benefits are of each.
Cesarean Birth
Not all pregnancies deliver vaginally. You may have a scheduled cesarean section, or your healthcare provider may decide that a c-section is the best action once you’re in labour.
For cesarean delivery, you’ll first be given anesthesia to numb you or put you to sleep before surgery. Then, after being prepped for surgery, your doctor will make an incision in your abdomen and uterus and remove the baby and placenta manually.
If your c-section is planned, your partner will likely be allowed in the operating room with you during surgery.
40 Weeks Pregnant: Your Symptoms
Here are some symptoms you may be experiencing at 40 weeks pregnant.
How Big Is a Pregnant Belly at 40 Weeks?
Your uterus has probably finished expanding now—there’s been a lot of growth in the past nine months! Before your pregnancy, your uterus started out at around two ounces, and at 40 weeks, it may now weigh about two and a half pounds.
You and your healthcare provider have likely been monitoring your weight gain throughout your pregnancy. Most of this weight comes from your own stores of fat, your baby’s body weight, and extra blood and fluid volume. You’ll lose most of the weight gained during pregnancy once your baby is born. Keep in mind that you’ll have a lot on your plate when your newborn is here, so take things slowly and try not to put too much pressure on yourself to “bounce back” into shape.
What Does 40 Weeks Pregnant Look Like?
Here’s a general idea of how your belly might look around 40 weeks pregnant:
40 Weeks Pregnant: Things to Consider
Before your little one arrives, here are a few things you might want to consider during your 40th week of pregnancy:
Tip for Partners As always, it’s great to let your pregnant partner know that you’re there to support them. Ask them how they’re feeling and discuss what may be in store in the next week. If you’re going to be the birth partner, review what you’ve learned during the childbirth classes, such as breathing and relaxation exercises. Your pregnant partner will be grateful for your calming and reassuring help during labour. |
40 Weeks Pregnant: Questions for Your Healthcare Provider
Here are a handful of questions you may have for your healthcare provider at forty weeks pregnant:
FAQS AT A GLANCE
At 40 weeks, you’re at the end of your pregnancy journey and it’s likely your baby is nearly ready to be born. Your body is preparing for labour, so you might observe some signs such as the “nesting” instinct, more frequent Braxton Hicks contractions, or your cervix beginning to dilate and efface. It’s important to stay in regular contact with your healthcare provider during this time.
40 Weeks Pregnant: Your Checklist
At 40 weeks gestation, take a look at our to-do list.
☐ Check with your hospital or birth centre to see if their facilities include bathtubs or showers that you can use during labour. Some pregnant people find that hydrotherapy can help lessen pain and discomfort.
☐ Download the Pampers Rewards app to earn discounts and gifts on all the diapers and wipes you’ll be buying in the coming years.
☐ If possible, organize some help around the house for the first few days and weeks after your baby is born. Friends, neighbours, or nearby family members may be happy to pitch in with meal preparation, grocery shopping, or caring for your older children.
☐ Read up on how to time contractions or download a contraction timer app on your phone.
☐ Make a list of all the people you want to tell as soon as your little one’s born so you don’t forget anyone. If you plan to make a social media announcement, you may want to draft something now, then just fill in details like the time of birth and your baby’s weight later on.
☐ If you haven’t packed your hospital bag at 40 weeks pregnant, now would be a really good time to start getting together the essential items you’ll need at the hospital or birthing centre. Use our handy hospital bag checklist to make sure you haven’t missed anything.
How We Wrote This Article The information in this article is based on the expert advice found in trusted medical and government sources, such as the American Academy of Pediatrics and the American College of Obstetricians and Gynecologists. You can find a full list of sources used for this article below. The content on this page should not replace professional medical advice. Always consult medical professionals for full diagnosis and treatment.
- American College of Obstetricians and Gynecologists. Your Pregnancy and Childbirth: Month to Month, 7th ed. (Washington, DC: American College of Obstetricians and Gynecologists, 2021).
- Kids Health. “Inductions.”
- Kids Health. “Week 40.”
- Mayo Clinic. “Fetal development: The 3rd trimester.”
13 Weeks Pregnant
At 13 weeks, your baby's organs are fully formed and hard at work, but there’s still lots more growing to do. Find out what else is happening this week.
Read more11 Weeks Pregnant
At 11 weeks pregnant, you’re nearing the end of the first trimester. Discover what pregnancy symptoms are common around this time, and when they may subside.
Read more4 Weeks Pregnant
At 4 weeks pregnant, implantation occurs, and the embryo is about the size of a poppy seed. Learn more about being 4 weeks pregnant.
Read more10 Weeks Pregnant
At 10 weeks pregnant, discover how your baby’s developing and learn about the symptoms you might experience this week.
Read more1, 2, and 3 Weeks Pregnant
Educate yourself on the very early signs of pregnancy, spanning from 1 to 3 weeks, with detailed insights. Understanding what to expect in those crucial time.
Read more38 Weeks Pregnant
At 38 weeks, your pregnancy is almost full term. Given most babies aren’t born on their due dates, you could meet your little one any day now. Learn more here.
Read more5 Weeks Pregnant
At 5 weeks pregnant, the placenta and umbilical cord are forming. Discover some of the most common pregnancy symptoms at 5 weeks.
Read more20 Weeks Pregnant
Did you know that at 20 weeks, in addition to moving and kicking, most babies get the hiccups? Read more about this and your symptoms at 20 weeks pregnant!
Read more6 Weeks Pregnant
At 6 weeks, lots of exciting developments are in the works! Learn about common pregnancy symptoms and get tips you can use at 6 weeks pregnant.
Read more7 Weeks Pregnant
Find out how the embryo—now about the size of a blueberry—is developing at 7 weeks pregnant, and read up on the symptoms you may be experiencing.
Read more13 Weeks Pregnant
At 13 weeks, your baby's organs are fully formed and hard at work, but there’s still lots more growing to do. Find out what else is happening this week.
Read more11 Weeks Pregnant
At 11 weeks pregnant, you’re nearing the end of the first trimester. Discover what pregnancy symptoms are common around this time, and when they may subside.
Read more4 Weeks Pregnant
At 4 weeks pregnant, implantation occurs, and the embryo is about the size of a poppy seed. Learn more about being 4 weeks pregnant.
Read more10 Weeks Pregnant
At 10 weeks pregnant, discover how your baby’s developing and learn about the symptoms you might experience this week.
Read more1, 2, and 3 Weeks Pregnant
Educate yourself on the very early signs of pregnancy, spanning from 1 to 3 weeks, with detailed insights. Understanding what to expect in those crucial time.
Read more38 Weeks Pregnant
At 38 weeks, your pregnancy is almost full term. Given most babies aren’t born on their due dates, you could meet your little one any day now. Learn more here.
Read more5 Weeks Pregnant
At 5 weeks pregnant, the placenta and umbilical cord are forming. Discover some of the most common pregnancy symptoms at 5 weeks.
Read more20 Weeks Pregnant
Did you know that at 20 weeks, in addition to moving and kicking, most babies get the hiccups? Read more about this and your symptoms at 20 weeks pregnant!
Read more

