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Scans and screening tests

A member of staff and pregnant woman looking at paperwork

During your pregnancy, you'll be offered scans and screening tests to monitor your baby's development and try to find any health problems that could affect you or the baby.

Ultrasound scans

Ultrasound scans use sound waves to build a picture of the baby in the womb. They're used to:

  • check the size of your baby (this gives us a better idea of how many weeks pregnant you are and when your due date will be)
  • check if you're having more than one baby
  • detect some abnormalities
  • look at the position of your baby and the placenta
  • check that your baby is growing normally.
Find out more

Screening tests

You'll be offered screening tests that are designed to try to find any health problems that could affect you or the baby.

They're used to find people with a higher chance of a health problem. This means they can get earlier, potentially more effective treatment, and make informed decisions about their health. 

Find out more.