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Scan of the Week: Twins at 9 Weeks Gestation

UI

Ultrasound Ireland

Medical Team

16 October 20191 min read

This cute video shows twins at just 9 weeks gestation during an Early Pregnancy Scan at Ultrasound Ireland.

Discovering Twins

Finding out you're expecting twins is an exciting surprise for many parents! At 9 weeks, we can typically:

  • See both babies - each in their own sac
  • Confirm two heartbeats - both beating strongly
  • Assess chorionicity - whether twins share a placenta
  • Date the pregnancy - estimate gestational age

What Makes This Special

At 9 weeks, twin embryos are each about the size of a grape, but they're already:

  • Developing distinct features
  • Moving independently
  • Growing rapidly

Twin Pregnancy Monitoring

Twin pregnancies require more frequent monitoring to ensure both babies are developing well. Your healthcare team will advise on the appropriate scan schedule.

Types of Twins

During early scans, we can determine whether twins are:

  • Identical (monozygotic) - from one egg, may share a placenta
  • Fraternal (dizygotic) - from two eggs, each with own placenta

This information is important for managing your pregnancy.


Confirm your pregnancy with an early pregnancy scan at Ultrasound Ireland. Call 01 210 0232.

Tags:scan-of-the-weektwins9-weeksearly-pregnancy

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