Nine Moons
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Second trimester

21 weeks pregnant

Quick answer

At 21 weeks pregnant, your baby is about the size of a carrot: around 26.7 cm head to heel and 360 g. Movements are getting stronger, from flutters to proper kicks.

Your baby at 21 weeks

Movements are getting stronger, from flutters to proper kicks.

SizeAbout the size of carrot
Length26.7 cm head to heel
Weight360 g

Your body at 21 weeks

You may feel the first flutters. The detailed anomaly scan usually happens around now. Backache is common as your posture changes.

For your partner

She may feel the first kicks. You might soon too.

  • Put your hand on the bump in the evening
  • Join the anomaly scan
  • Talk to the bump; baby will hear you soon

Call your doctor or hospital straight away for bleeding, severe pain, fluid leaking, severe headache or vision changes.

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