ParentSide
Second trimester

20 Weeks Pregnant

Around the halfway point

This week your baby is about the size of a banana.

How your baby is developing

  • Your baby is increasingly active — kicking, turning, and even practising sucking.
  • A white, greasy layer called vernix protects your baby's skin.

What may be happening in your body

  • Around now many people have their anomaly scan — a detailed ultrasound that checks how your baby is developing and also examines the placenta.
  • If you haven't felt anything yet, first movements often begin from about this point, particularly with a first baby.
  • Some people notice their hair feels thicker and shinier around the middle of pregnancy.

How you may be feeling

  • Reaching the halfway mark can feel like a real milestone, and for some it brings a wave of relief or pride.
  • The scan can carry a lot of meaning, so a mix of excitement and nervousness beforehand is something many people describe.
  • Some people feel more connected to their baby after seeing them on screen, while others don't feel a shift straight away — both are common.

Worth remembering

Everyone's movement pattern is unique; get to know your baby's own rhythm over time.

A closer look

What the 20-week scan looks at

This scan checks your baby's growth and looks in detail at how their body is developing. For many it's a chance to see their baby moving, which can be a moving experience, though it's also a medical check so some nerves are understandable. If anything comes up, your midwife or doctor will talk you through what it means and any next steps.

First movements, in your own time

With a first baby, many people start to feel movement after 20 weeks, so this can be around when those early flutters appear. They often feel like gentle swirling or bubbling and come and go rather than happening all the time. Movements settle into a pattern you'll gradually get to know over the coming weeks.

Something you can do this week

If you have questions about symptoms, vaccines, or movement, your midwife or doctor can guide you.

What comes next

In the coming weeks movements usually grow stronger and more regular.

Professional support

Services ParentSide defines for this stage. Each page explains what the service covers and which professionals are approved to provide it.

All ParentSide services

Sources and updates

Last reviewed:
This content is based on estimated averages and general information; it does not replace medical advice. If you are concerned about yourself or your baby, speak with a qualified healthcare professional.

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