17 weeks

How your baby's growing:

Your baby's skeleton is changing from soft cartilage to bone, and the umbilical cord — her lifeline to the placenta — is growing stronger and thicker. Your baby weighs 5 ounces now (about as much as a turnip), and she's around 5 inches long from head to bottom. She can move her joints, and her sweat glands are starting to develop.

What twins look like at 16 weeks (click on the link)

Starting to feel a bit off balance? As your belly grows, your center of gravity changes, so you may begin to occasionally feel a little unsteady on your feet. Try to avoid situations with a high risk of falling. Wear low-heeled shoes to reduce your risk of taking a tumble; trauma to your abdomen could be dangerous for you and your baby. You'll also want to be sure to buckle up when you're in a car — keep the lap portion of the seat belt under your belly, drawn snugly across your hips, and also use the shoulder harness, which should fit snugly between your breasts.

How your life's changing:

You may also notice your eyes becoming drier. Using over-the-counter lubricating drops may help. If your contact lenses become uncomfortable, try wearing them for shorter stretches of time. If you still have discomfort, switch to glasses until after you give birth.

from BabyCenter.com

Here's what's going on at 16 weeks...

How your baby's growing:

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 started growing toenails. And there's a lot happening inside as well. For example, his heart is now pumping about 25 quarts of blood each day, and this amount will continue to increase as your baby continues to develop.

See what your baby looks like this week. (Or see what fraternal twins look like in the womb this week.)

Note: Every baby develops a little differently — even in the womb. Our information is designed to give you a general idea of your baby's development.

The top of your uterus is about halfway between your pubic bone and your navel, and the round ligaments that support it are thickening and stretching as it grows. You're probably feeling a whole lot better as you settle into pregnancy, too. Less nausea, fewer mood swings, and "glowing" skincontribute to an overall sense of well-being.

How your life's changing:

Soon you'll experience one of the most wonderful moments of pregnancy — feeling your baby move. While some women notice "quickening" as early as 16 weeks, many don't feel their baby move until about 18 weeks or more. (And if this is your first baby, don't be too impatient — you may not be aware of your baby's movements until 20 weeks or so.) The earliest movements may feel like little flutters, gas bubbles, or even like popcorn popping. Over the following weeks they'll grow stronger and you'll be able to feel them much more frequently.

The belly...

Well, I am being told to embrace the belly...so here is the first belly pic at 16 weeks.