26 weeks pregnant

Size: 14 in.

Weight: 1 2/3 lbs.

"Did you know that I can already distinguish between light and dark? When the sun shines on Mom's tummy, it gets all rosy in here."

Your Baby
Deep breath! Air sacks are developing in your baby's lungs, which means it just might be possible for your baby to take a breath at the end of this week. The air sacks (technically called alveoli) will continue to grow for the next nine years. The membrane that keeps the alveoli separate from the blood vessels is now thin enough to allow for that oxygen–carbon dioxide exchange we call breathing. Other highlights this week:

The retina completes the development of its normal layers this week—all the better to see you with. Well not you, per se, because her eyes are still sealed shut and it's really dark in there, but your baby's eyes are now fully developed.

Brainwaves for the auditory and visual systems are detectable in baby's noggin this week. That means baby's brain is registering things like sound and light. She can't understand what any of it means yet, but she's on track to comprehend an entire episode of Blue's Clues in no time!

As hearing continues to develop, your baby will start to recognize your voice. One hint that your karaoke rendition of "Bohemian Rhapsody" is not the best would be when the baby starts banging on your gut. Your bambino will also start to recognize your partner's voice. He may feel silly talking to your stomach, but assure him that somebody other than you is definitely listening. Research has shown that newborns actually recognize familiar sounds after birth. Proof that your baby has been paying attention all along.

Break out the sparkling apple juice—baby has now completed two-thirds of her stay in Hotel Womb. Your baby is about 1 2/3 pounds and is 14 inches long head-to-heel, or about the length of a burp cloth (otherwise known as your primary wardrobe accessory for the next several months).

After a month of having his eyelids sealed shut, your baby begins to open his eyes again this week. Your baby`s eyes are almost completely developed. Your baby`s eyes are blue in the womb and may change colors later in life. This is true for all races because the iris doesn`t have its final color until a few months after birth. However, some babies are born with darker or lighter shades of blue. Your growing baby will continue to put on layers of fat until he is born. He is still lean at this point of the pregnancy though. By the time your baby is born, he will assume the typical newborn`s plumpness. Your baby`s skin will still be wrinkled and red, but the fat continues to fill the skin out.

Finger and toe nails continue to grow.

Blood vessels start to develop in the lungs to prepare the baby for life outside the uterus.

Your baby`s blood circulation is completely functional. The umbilical cord system continues to grow and thicken as blood travels with considerable force through the body to nurture the baby. The placenta is now almost equal in size to the baby.

Even though it is still way too soon for your baby to be born yet, the chance of survival without severe abnormalities is now 70% provided it is born in a hospital.