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Illustration of baby development at week 21 of pregnancy

Sensible Advances: Your Baby in the Twenty-First Week of Pregnancy

  • Baby size 26.7 cm
  • Approximate weight 360 g
  • About the size of a carrot

In the twenty-first week of pregnancy, your baby has grown noticeably and measures approximately 26-28 cm and weighs around 360-400 grams. The baby's movements are more frequent and you are likely to feel regular kicks and movements. Sensory development is in full swing; The systems of taste, smell, sight, hearing and touch are all present and beginning to function. The baby is also developing a sleep-wake pattern and may hiccup. This period is crucial as the baby continues to develop and prepare for the second half of the pregnancy.

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The images and descriptions of the baby's development from week 1 to week 42 have been generated using artificial intelligence. Although they offer a close representation, they are not 100% accurate. For exact, personalized information about your baby's development, we recommend getting an ultrasound and consulting your doctor.

This content is for educational purposes and does not replace medical advice. Sizes and weights are reference averages and vary in every pregnancy. If you notice any warning sign, seek medical care immediately.