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Your baby now weighs about 2 1/2 pounds (like a butternut squash) and is a tad over 15 inches long from head to heel. Her muscles and lungs are continuing to mature, and her head is growing bigger to make room for her developing brain. To meet her increasing nutritional demands, you'll need plenty of protein, vitamins C, folic acid, and iron (Don't worry everyone- I have read this and am working on it!). And because her bones are soaking up lots of calcium, be sure to drink your milk (or find another good source of calcium, such as cheese, yogurt, or enriched orange juice). This trimester, about 250 milligrams of calcium are deposited in your baby's hardening skeleton each day.
Here is what is going on this week with the baby...
By this week, your baby weighs two and a quarter pounds (like a Chinese cabbage) and measures 14.8 inches from the top of her head to her heels. She can blink her eyes, which now sport lashes. With her eyesight developing, she may be able to see the light that filters in through your womb. She's also developing billions of neurons in her brain and adding more body fat in preparation for life in the outside world.