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Highlights this week

Brain gain

Between now and birth, your baby's brain triples in weight, and deep grooves develop to allow more surface area for neurons. 

Do we need a will?

Absolutely. If you don't have one, you leave the fate of your child's guardianship and your assets in the court's hands. 

Take off your rings now

If you wait until your fingers are too swollen, you may have to have your rings cut off by a jeweler.

29 weeks is how many months?

You're in your seventh month!

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Baby development at 29 weeks

Building bone strength

Your baby's bones are soaking up lots of calcium as they harden, so be sure to drink your milk (or find another good source of calcium, such as cheese, yogurt, or enriched orange juice). About 250 milligrams of calcium are deposited in your baby's skeleton each day.

Breathing room

The respiratory sacs at the tips of your baby's lung branches have begun making a substance called surfactant, which keeps them inflated when there's not a lot of air in the lungs (when exhaling, for example). While her lungs are still immature, they would be capable of functioning – with a lot of medical help – if she were to be born now.

baby with head expanding for growing brain
Your baby at 29 weeks Tap the plus for more details
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Your baby is about the size of a butternut squash

butternut squash
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head to toe
2 ½
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Pregnancy symptoms during week 29

Gas and bloating

The pregnancy hormone progesterone relaxes smooth muscle tissue throughout your body, including your gastrointestinal tract. This relaxation, coupled with the crowding in your abdomen, slows digestion. Sluggish digestion can cause gas and heartburn – especially after a big meal – and contribute to constipation.


Your growing uterus may also be contributing to hemorrhoids. These swollen blood vessels in your rectal area are common during pregnancy. Fortunately, they usually clear up in the weeks after giving birth.


Some women get something called "supine hypotensive syndrome" during pregnancy. This happens when lying flat on your back causes a change in heart rate and blood pressure that makes you feel dizzy until you change position. You might also notice that you feel lightheaded if you stand up too quickly.

Don't see your symptom?
Wondering about a symptom you have? Find it on our pregnancy symptoms page.

baby in womb at 29 weeks with uterus pushing against diaphragm
Your body at 29 weeks Tap the plus for more details

Pregnancy checklist at 29 weeks

Find a doctor for your baby

Before you choose a doctor for your baby, get recommendations and try to set up an in-person meeting. Make sure the doctor accepts your health insurance and has an office that's convenient for you.

Assemble your baby gear

This is the perfect job for your partner or a friend who wants to help. Cribs, bassinets, and strollers can be tricky to put together, especially when you're sleep deprived, so do it now!

Plan your maternity leave

Get the complete lowdown on maternity leave, plus see our maternity leave checklist and read real stories of how moms made it work.

29 weeks pregnant bellies

This week's video


BabyCenter's editorial team is committed to providing the most helpful and trustworthy pregnancy and parenting information in the world. When creating and updating content, we rely on credible sources: respected health organizations, professional groups of doctors and other experts, and published studies in peer-reviewed journals. We believe you should always know the source of the information you're seeing. Learn more about our editorial and medical review policies.

ACOG. 2015. FAQ156. Prenatal development: How your baby grows during pregnancy. American College of Obstetricians and Gynecologists. http://www.acog.org/Patients/FAQs/Prenatal-Development-How-Your-Baby-Grows-During-Pregnancy#one [Accessed May 2019]

DOL. Undated. Family and Medical Leave Act. U.S. Department of Labor. https://www.dol.gov/agencies/whd/fmla [Accessed June 2020]

Mayo Clinic. 2015. Fetal development: The third trimester. http://www.mayoclinic.org/healthy-lifestyle/pregnancy-week-by-week/in-depth/fetal-development/art-20045997 [Accessed May 2019]

Mayo Clinic. 2014. What can I do to treat hemorrhoids during pregnancy? http://www.mayoclinic.org/healthy-lifestyle/pregnancy-week-by-week/expert-answers/hemorrhoids-during-pregnancy/faq-20058149 [Accessed May 2019]

MedlinePlus (ADAM). 2015. Fetal development. https://www.nlm.nih.gov/medlineplus/ency/article/002398.htm [Accessed May 2019]

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Kate Marple is a writer and editor who specializes in health, pregnancy, and parenting content. She's passionate about translating complicated medical information into helpful pregnancy and parenting advice that's easy to understand. She lives in San Francisco with her family.
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