Baby Size
Week 17

Your Baby is the Size of a Pear

Week 17

Pear

Length

13 cm / 5.1 in

Weight

140 g / 4.9 oz

Fat is beginning to accumulate under your baby's skin, which will help with warmth and energy after birth.

Development at Week 17

At 17 weeks, your baby's skeleton is transforming from soft cartilage to hardening bone throughout the body. The umbilical cord is growing thicker and stronger to keep pace with the baby's increasing needs. Sweat glands are forming, and your baby's unique fingerprints are now fully established.

Next week

At week 18, your baby will be the size of a Sweet Potato.
See Week 18

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