Trimester 3 ยท Week 40 of 40
Week 40 of pregnancy: Your Due Date
Your due date is an estimate, and few babies arrive on it. The checks that may follow 40 weeks, when induction is discussed, and eating well after birth.
Last updated 28 September 2026
What's happening this week?
Reaching your due date without a baby is common: only a small share arrive on the day itself, and birth up to 41+6 weeks is still normal. From now your doctor may want to see you more often and check on your baby's wellbeing. Induction is commonly discussed around 41 weeks, though timing varies by hospital and your own situation. It is also a good week to look past the birth, to how you will eat, rest and be supported in the first weeks.
Baby's development
At 40 weeks your baby is fully formed and ready for birth. The due date was calculated as 280 days from the first day of your last period, so it is an estimate, and only about 4โ5% of babies are born on it.
If pregnancy continues, your baby keeps growing and the placenta keeps working. The risks of continuing rise slowly after 41 weeks: NICE quotes about 1, 2 and 3 stillbirths per 1,000 births at 40, 41 and 42 weeks. Most babies born after their due date are healthy, but this is why doctors offer extra checks and discuss induction as the weeks go on.
Meconium-stained waters are more common after 40โ41 weeks, so the colour of your waters still matters. The vernix coating continues to decrease near and after term.
Late term is 41+0 to 41+6 weeks, and post-term is 42+0 weeks or later. Whatever happens next, your baby's movements should continue as usual right up to and during labour. About 3โ4% of babies are still bottom-first at this point, and your doctor will discuss the plan if yours is one of them.
Your baby's size
About the size of a small pumpkin
51.2 cm
20.2 in ยท Length
3500 g
Weight
Week 40
Gestational age
Length at term is usually about 48โ52 cm. The 3.5 kg shown reflects Western reference charts, whose median is about 3.6 kg. Indian babies are often lighter, commonly around 3 kg, and healthy term babies range from roughly 2.5 to 4 kg. A scan estimate this late can differ from the birth weight, and the pumpkin is only a rough guide.
Your body this week
Waiting past your due date can feel physically and emotionally draining. Pelvic pressure, backache, broken sleep and frequent tightenings are common, and your cervix may be gradually softening in preparation. None of this means something is wrong; it simply means your body has not yet started labour.
After birth, your uterus begins to shrink back, and breastfeeding helps it contract firmly and reduces bleeding. Early, frequent feeds also help your milk supply build over the first days. Your body will need time and rest to recover, whatever kind of birth you have. Keep going to sleep on your side, for naps too, until your baby is born.
It is normal to feel frustrated or anxious now. If worry is taking over, tell your doctor. After the birth, keep an eye on your mood: tearfulness or low mood that lasts most days for two weeks or more deserves a conversation with your doctor, ANM or ASHA.
Symptoms you may notice
Every pregnancy is different - you may have some, all or none of these.
- Pelvic pressure
- Your baby is low in the pelvis. Rest on your side, change position often and take your time getting up.
- Tightenings
- Irregular tightenings are common. Once they are regular and building, follow your hospital's advice on when to call.
- Swollen feet
- Gradual swelling by evening is common. Sudden swelling with a headache or vision changes needs checking straight away.
- Frustration and worry
- Going past the due date can be stressful. Let people know you will share news when there is some, and talk to your doctor about your worries.
- Poor sleep
- Discomfort and anticipation disturb sleep. Rest in the day when you can.
- Show or discharge
- A show or more discharge is common near labour. Heavy bleeding, or green, brown or watery fluid, is different and needs a call straight away.
Medical care and tests
Checks after your due date
Varies by providerFrom 40+0 weeks
Your doctor may suggest extra checks. In many Indian hospitals this includes a non-stress test (NST) of your baby's heart rate and a scan of the amniotic fluid; this is common practice rather than national guidance. In the US, monitoring is considered reasonable from 41 weeks. In the UK, extra heart-rate and fluid checks are offered after 42 weeks if you decide not to be induced.
Induction of labour
Varies by providerCommonly discussed around 41 weeks
NICE advises offering induction from 41+0 weeks. In the US, induction can be considered from 41+0 and is recommended by 42+6 weeks. Indian practice often considers it from 40 to 41 weeks, depending on your health and your baby's.
40-week appointment
Routine40 weeks
This is a WHO contact and, in the UK, an appointment for first babies. Blood pressure, urine and your baby's position are checked, and a membrane sweep may be offered.
There is no single schedule after the due date. Ask your doctor what they plan and why, and report any change in movements straight away rather than waiting for your next check.
Nutrition this week
- After birth, your body needs a balanced diet rather than special foods. Breastfeeding raises energy and protein needs, which cereals, dals, vegetables, fruit, milk and dahi can meet, with eggs, fish or meat if you eat them.
- Many families follow confinement food customs, from panjiri and gond laddoos to cutting out certain vegetables. ICMR-NIN says there is no need to avoid specific foods because of mistaken beliefs or taboos, so keep fruit, vegetables and pulses on your plate.
- Energy-dense traditional sweets made with ghee and dry fruit are fine in moderate amounts but should not replace meals, and there is no evidence that ghee eases labour.
- Your iron and calcium tablets do not stop at delivery; ask how long to continue them. Honey is not needed for energy in labour, and newborns should never be given it.
Movement and exercise
- Gentle walking and changing position keep you comfortable while you wait.
- After birth, start with short walks and pelvic floor exercises when you feel ready, and ask your doctor before returning to harder exercise, especially after a caesarean.
- Keep up pelvic floor squeezes now; they help with bladder control, and you can pick them up again gently after the birth when you feel ready.
- Rest often; you need energy for labour and the first nights with your baby.
Things to keep in mind
- Keep noticing your baby's movements every day until the birth, and never wait until the next day to report a change.
- If you are offered induction, ask about the reasons, the method, and what happens if you choose to wait a little longer.
- Plan the first days: who stays with you in hospital, who manages visitors, who cooks at home, and who helps at night.
- Keep your MCP card and hospital papers safe; your baby's vaccinations and check-ups will be recorded there.
When to contact your doctor
Call your doctor or midwife the same day if you have
- Itching of the palms and soles.
- Fever or shivering.
- Unusual, itchy or smelly discharge.
- A persistent headache, or swelling that comes on suddenly.
- Pain or swelling in one calf.
Get emergency care now if you have
- Any drop in movements, or a change in their pattern.
- Green, brown, bloody or smelly fluid from the vagina.
- The cord visible or felt in the vagina.
- Heavy bleeding, or pain that does not ease between contractions.
- Chest pain, struggling to breathe, or a seizure.
In India, call 108 for an ambulance, 102 for free transport for pregnant women in many states, or 112 for any emergency - or go straight to your nearest hospital with a maternity unit.
If something feels wrong, trust that feeling and call - you never need to wait for your next appointment.
Questions to ask your doctor
- What checks will you do now that I have reached my due date?
- When would you suggest induction for me, and why?
- What happens if I would prefer to wait?
- What support is available for feeding and recovery after birth?
Week 40 checklist
- Book your post-due-date check
- Ask about induction timing
- Keep noticing movements daily
- Plan meals and helpers for after the birth
- Keep the MCP card with your hospital bag
Frequently asked questions
Why hasn't my baby arrived on my due date?
The due date is an estimate, based on your last period or an early scan. Only about 4โ5% of babies are born on it, and birth anywhere between 37+0 and 41+6 weeks is considered normal. Going past it is common and not usually a sign of a problem, but your doctor will keep a closer eye on you and your baby from now.
What is an NST and why might I need one?
A non-stress test records your baby's heart rate pattern using a monitor on your bump. Many Indian hospitals use it near or after the due date, often alongside a scan of the fluid around the baby, to check on your baby's wellbeing. It is local practice rather than a national rule, and your doctor will explain why they suggest it.
When will I be induced if I go overdue?
It varies. NICE in the UK offers induction from 41+0 weeks. In the US it can be considered from 41 weeks and is recommended by 42+6. Indian doctors commonly consider it from 40โ41 weeks, depending on your health and your baby's. Ask your doctor about their plan, the method, and what happens if you prefer to wait.
This page is general information, not a diagnosis or a substitute for care from your own doctor or midwife. Pregnancies differ, and timings here are typical ranges rather than deadlines. Read our medical disclaimer and editorial policy.