Baby: Week 15
You will enter a new weight class soon, as body fat is developing.
You’re nearly 11cm long from crown to rump and weigh about 140g, with a mostly rubbery cartilage skeleton and a few bones. Your protective myelin sheath is covering the spinal cord.
Now that you’re kickboxing and playing, you can work up a sweat, since sweat glands are developing all over your body.[1] Your heart beats about 140-150 beats per minute, about twice as fast as your mother’s.
You will enter a new weight class soon, as body fat is developing. The fat will provide energy and help keep you warm after birth.[2]
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