Your little one will get a whole lot larger in the third trimester, growing from about 2 1/2 pounds and 16 inches long in week 28 of pregnancy to between 6 and 9 pounds and 19 to 22 inches long in week 40. Indeed, your baby is growing fast — so don’t be surprised if his increase in size along with a decrease in living space leads to some serious kicks and pokes in your gut.

Here are a few of the highlights happening in your third trimester of pregnancy:

– Bones: As your baby transforms cartilage to bone in months 7 and 8, he’ll be getting all of her calcium from you — so be sure to eat plenty of calcium-rich foods.

– Hair, skin and nails: By week 32 of pregnancy, baby’s formerly see-through skin will become opaque. In week 36, fat continues to accumulate as your baby sheds his vernix (the waxy substance that protects his skin from your amniotic fluid) and lanugo (the hairy coat that keeps him warm in there).

– Digestive system: In the final weeks of pregnancy, meconium — or baby’s first poop, consisting mostly of blood cells, vernix and lanugo — starts to build up in baby’s intestines.

– Five Senses: Your baby’s touch receptors will be fully developed around week 29 or week 30. By week 31 of pregnancy, your baby will get signals from all five senses, perceiving light and dark, tasting what you eat, and listening to the sound of your voice.

– Brain: In the third trimester your baby’s brain will grow faster than ever, test-driving some nifty skills including blinking, dreaming and regulating his own body temperature.

Around week 34 of pregnancy, baby’s body turns southward, settling into a heads-down, bottom-up position — unless, of course, your baby remains stubbornly in the breech position (in which case your doctor will likely attempt to manually turn baby around week 37).

Source whattoexpect.com
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