Sizes are averages; from week 20 length is measured head to heel. Not sure which week you’re in? Calculate it.
Your baby at 42 weeks
Post-term. Most babies are born before this week. Beyond 42 weeks the risks to the baby rise, because the placenta may work less efficiently.
Your body at 42 weeks
Your doctor will have a clear plan – usually induction or, if needed, caesarean birth.
Common symptoms this week
- Contractions
- Fatigue
Tips & to-do list
- Follow your doctor’s plan closely.
- Report any reduction in movements at once.
- Soon you’ll be holding your baby!
Check-ups and tests around this week
- Weekly antenatal visits; baby’s position and wellbeing checks
- Monitoring (NST, fluid check) and discussion about induction
Week 42 at a glance
| At 42 weeks | |
|---|---|
| Trimester | Third trimester |
| Pregnancy month | Month 9 of 9 |
| Weeks to due date | 2 weeks past due date |
| Days pregnant | 294–300 days |
| Progress | 100% of 40 weeks |
When to call your doctor
Contact your doctor or go to hospital straight away if you notice:
- Reduced or changed baby movements
- Waters breaking or any bleeding
- Severe headache, vision changes, pain under the ribs
- Regular painful contractions before 37 weeks
- Severe itching of palms and soles
Questions about 42 weeks pregnant
How many months is 42 weeks pregnant?
42 weeks pregnant falls in month 9 of pregnancy, in the third trimester. For medical purposes, weeks and days are more precise than months.
How big is my baby at 42 weeks?
At 42 weeks your baby is about the size of a large jackfruit – roughly ~51.7 cm long and weighing about ~3.7 kg.
Is it normal to have no symptoms at 42 weeks?
Yes. Every pregnancy is different, and symptoms come and go. Feeling well is not a sign that something is wrong. If you have concerns, or notice any warning signs listed on this page, contact your doctor.
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Medical disclaimer: The results and information on this page are estimates for general education only. They are not a diagnosis and do not replace advice from your gynaecologist, obstetrician or midwife. If you have pain, bleeding, reduced baby movements or feel unwell, contact your doctor or call 108 immediately. Read the full disclaimer.