39 Weeks Pregnant

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Here's what's happening during Week 39 of your pregnancy:

39-weeks-pregnant

Your Growing Baby

You're in the home stretch! After nine months of growth and development, your baby is ready to be born, or nearly so. At week 39, your baby is fully developed and anywhere from 17-23 inches long and weighs 6-10 pounds. Don't be frightened if your OB-GYN says your baby is large: It's extremely difficult to judge a baby's weight accurately from the outside.

Your baby is adding neural connections and growing hair and still gaining weight. Researchers have theorized that when babies are ready to be born, they send a chemical signal of androgens to the placenta, which increases the production of estrogen and leads to labor. If so, it's proof of the old saying that "only a baby knows when it's ready to be born."

Your Growing Belly

Don't be surprised if you get discouraged now. Relatives may be calling regularly to find out if labor has started. Ignore them and make plans every day—see a movie, take a walk, read or simply lounge around at home. Relish this peaceful time while it lasts! To get some relief from your weight and aches, do plenty of hands-and-knees cat stretches and pelvic tilts. Soak in a warm bath, swim, or just float in the pool to take a break from gravity.

Tips & To-Do's

Do You Dread Delivery?

Many women who whole-heartedly want to be mothers dread the prospect of having to actually deliver a baby. In fact, while just about every woman feels some anxiety about giving birth, 6 percent to 10 percent of pregnant women suffer intense fear. 10 ways to calm your delivery day fears >>


Things to think about this week

Many women begin maternity leave weeks before their due date. If you plan to work up until the end, post an "If I go into labor tonight" memo at work. If you'll be returning to work and plan to breastfeed, find or create a suitable place to pump.

 

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Pregnancy Milestones:

Below are some of the most important milestones of your pregnancy. Click on any week to read more, or view our Week-by-Week Pregnancy page to see your pregnancy at-a-glance.

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Week 4: Positive test: You're pregnant! You may be starting to feel bloated, crampy, tired and moody, and experiencing sore breasts, nausea/vomiting and a frequent need to pee.  But don't worry if you're not—that's normal.  Read more about being 4 weeks pregnant.

 

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Week 8: Your doctor may look or listen for the baby's heartbeat with an ultrasound. Once you see or hear it, your miscarriage risk drops to about 2 percent. He'll also give you an official due date—though very few women actually deliver on that day.  Read more about being 8 weeks pregnant.

 

 

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Week 10: Your inch-long baby is now called a fetus. While the icky side effects of pregnancy may be starting to abate, your anxiety about having a healthy baby might be increasing.  Read more about being 10 weeks pregnant.

 

 

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Week 15: The "window of opportunity" for many important screening and diagnostic tests opens this week, should you decide to undergo them.  Read more about being 15 weeks pregnant.

 

 

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Week 16: Sometime between 16 and 22 weeks, you'll start to feel your baby move.  Read more about being 16 weeks pregnant.

 

 

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Week 29: The basketball-sized lump in your belly may be inhibiting shoe tying, leg shaving and the like. The fetus is increasingly sensitive to light and sound.  Read more about being 29 weeks pregnant.

 

 

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Week 36: The baby may drop lower into your pelvis in preparation for delivery. This should make it easier to breathe—yet your pee breaks will become ever more frequent.  Read more about being 36 weeks pregnant.

 

 

Click here to read more about every week of pregnancy on our Week-by-Week Pregnancy page.