Your pregnancy and baby guidePregnancy due date calculator
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- Getting pregnant
- I'm pregnant
- Early days
- Week by week
- Twins
- Preparing for the birth
- Work out your due date
- Tests scans and checks
- Your pregnancy (antenatal) care
- Vaccinations
- Your health and wellbeing
- Healthy eating
- Foods to avoid
- Drinking alcohol while pregnant
- Exercise
- Vitamins and supplements
- Stop smoking
- Your baby's movements
- Sex in pregnancy
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- Reduce your risk of stillbirth
- Illegal drugs in pregnancy
- Your health at work
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- If you're a teenager
- Existing health problems
- Common pregnancy ailments
- Pregnancy-induced conditions
- Labour and birth
- Your newborn
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- Weaning and solid foods
- Teething
- Baby health and care
- Spotting signs of serious illness
- Reflux in babies
- How to take a baby's temperature
- Reducing the risk of SIDS
- Treating a high temperature
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The calculator on this page can help you work out when you might expect your baby to arrive.
Using the due date calculator
To find your due date, enter the date of the first day of your last period, and click 'show your due date' - the calculator will do the rest. Pregnancy normally lasts from 37 weeks to 42 weeks from the first day of your last period.
As part of your pregnancy (antenatal) care, your midwife will offer you a dating scan that will give you a more accurate date for the birth of your baby.
Find out about:
- your NHS pregnancy journey
- your first midwife appointment
- health things you should know when you're pregnant
Find out about what's happening when you're:
- 1, 2 or 3 weeks pregnant
- 4 weeks pregnant
- 5 weeks pregnant
- 6 weeks pregnant
- 7 weeks pregnant
- 8 weeks pregnant
Sign up for Start4Life's pregnancy and baby emails for expert advice, videos and tips on pregnancy, birth and beyond.
You can find pregnancy and baby apps and tools in the NHS apps library.
Unplanned or unsure? Find out more information and support.
Call 111
if you can't speak to your GP and don't know what to do next.
Page last reviewed: 04/10/2019
Next review due: 04/10/2022