What happens if my baby is overdue?

If you go past 40 weeks, your provider will monitor you more closely with non-stress tests and ultrasounds to check amniotic fluid levels and baby's well-being. At 41 weeks, they may recommend induction. By 42 weeks, induction is typically performed because the placenta may become less effective and the risk of complications increases.

What are the stages of labor?

Labor has three stages: (1) Dilation — contractions open the cervix to 10 cm, (2) Pushing — you push the baby through the birth canal, and (3) Delivery of the placenta. The first stage is the longest, especially for first-time mothers. Your healthcare team will guide you through each stage.

Third Trimester 40 weeks pregnant

Pregnancy Week 40 - Your Due Date! Ready to Meet Your Baby

You have reached your due date! At 40 weeks, your baby is fully developed and ready to be born. Only about 5% of babies arrive exactly on their due date, so do not worry if labor has not started yet. Your baby could come any day, and your body is prepared for the incredible journey of birth.

Pumpkin

Baby Size

51.2 cm (head to heel)

Length

3.5 kg

Weight

Week 40

of 42

Baby Development This Week

Your baby is fully developed and ready for life outside the womb. All organs are functioning, the lungs are mature, and the brain is prepared for the rapid learning that happens after birth. Your baby is about 20 inches long and weighs around 7.5 pounds on average, though there is wide variation. The skull bones are not yet fused, allowing the head to mold during birth. Your baby has a firm grasp, a strong sucking reflex, and all the skills needed to begin life as a newborn.

Changes in Your Body

You have reached your due date! Only about 5% of babies are born on their exact due date, so try to be patient. Your provider will discuss options if labor does not start soon. You may be experiencing increased pelvic pressure, more frequent Braxton Hicks contractions, and cervical changes. Your body is producing hormones that will help with labor and birth. You might feel a range of emotions from excitement to anxiety to impatience. Your provider will monitor you and your baby closely.

Common Symptoms at Week 40

Pelvic pressureContractionsCervical dilationMucous plug lossNestingFatigue

Tips for Week 40

Try to relax and stay positive — your baby will come when they are ready.
Take warm baths, go for gentle walks, or practice relaxation techniques.
Keep your phone charged and hospital bag by the door.
Trust the process — your body and your baby know what to do.

When to Call Your Doctor

Go to the hospital immediately for: regular contractions every 5 minutes; water breaking; heavy bleeding; severe headache; significantly decreased fetal movement; or fever over 100.4°F.

Frequently Asked Questions — Week 40

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