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Week 5
1/22/2013: Your baby now resembles a teeny tadpole (complete with a tiny tail) and is about the size of an orange seed. The circulatory (or blood) system, along with the heart, is the first part of that tiny body to be functional; and as your baby's heart starts to form, you may even be able to see it beating on an early ultrasound. Another part of your little tadpole that is under construction: the neural tube, which will eventually become your baby's brain and spinal cord. -
Week 8
2/12/2013:By this week, you get one whole inch of baby inside your womb. Finally, the little embryo reaches the one-inch mark. Know the changes that you observe in you and your baby here.
What are the physical changes that occur in your body during pregnancy week 8? Do you feel bloating? Bloating, heartburn and indigestion are the most common problems during the pregnancy. -
Week 12
3/12/2013:The most dramatic development this week: reflexes. Your baby's fingers will soon begin to open and close, his toes will curl, his eye muscles will clench, and his mouth will make sucking movements. In fact, if you prod your abdomen, your baby will squirm in response, although you won't be able to feel it. His intestines, which have grown so fast that they protrude into the umbilical cord, will start to move into his abdominal cavity about now, and his kidneys will begin excreting urine -
Week 16
4/9/2013:Get ready for a growth spurt. In the next few weeks, your baby will double his weight and add inches to his length. Right now, he's about the size of an avocado: 4 1/2 inches long (head to rump) and 3 1/2 ounces. His legs are much more developed, his head is more erect than it has been, and his eyes have moved closer to the front of his head. His ears are close to their final position, too. The patterning of his scalp has begun, though his locks aren't recognizable yet. He's even starte -
Week 20
5/7/2013:Curious about whether that melon-sized belly contains a boy or a girl? Now's your chance to take a peek! Your second trimester ultrasound, scheduled for anytime between 18 and 22 weeks, gives your practitioner a chance to see how things are going in there. And, wow, are they going! If you're having a girl, her uterus is now fully formed and her ovaries are holding about seven million primitive eggs. If you're having a boy, his testicles have begun their descent from the abdomen to their -
Week 24
6/4/2013:Your baby's growing steadily, having gained about 4 ounces since last week. That puts him at just over a pound. Since he's almost a foot long (picture an ear of corn), he cuts a pretty lean figure at this point, but his body is filling out proportionally and he'll soon start to plump up. His brain is also growing quickly now, and his taste buds are continuing to develop. His lungs are developing "branches" of the respiratory "tree" as well as cells that produce surfactant, a substance t -
Week 28
7/2/2013: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. -
Week 32
7/30/2013:By now, your baby weighs 3.75 pounds (pick up a large jicama) and is about 16.7 inches long, taking up a lot of space in your uterus. You're gaining about a pound a week and roughly half of that goes right to your baby. In fact, she'll gain a third to half of her birth weight during the next 7 weeks as she fattens up for survival outside the womb. She now has toenails, fingernails, and real hair (or at least respectable peach fuzz). Her skin is becoming soft and smooth as she plumps up -
Week 36
8/27/2013:Your baby is still packing on the pounds — at the rate of about an ounce a day. She now weighs almost 6 pounds (like a crenshaw melon) and is more than 18 1/2 inches long. She's shedding most of the downy covering of hair that covered her body as well as the vernix caseosa, the waxy substance that covered and protected her skin during her nine-month amniotic bath. Your baby swallows both of these substances, along with other secretions, resulting in a blackish mixture, called meconium, -
Week 40
9/24/2013:It's hard to say for sure how big your baby will be, but the average newborn weighs about 7 1/2 pounds (a small pumpkin) and is about 20 inches long. His skull bones are not yet fused, which allows them to overlap a bit if it's a snug fit through the birth canal during labor. This so-called "molding" is the reason your baby's noggin may look a little conehead-ish after birth. Rest assured — it's normal and temporary.
