← Week 28 Week 29 of 42 Week 30 →
Trimester 3

29 Weeks Pregnant

In week 29, your baby is putting on weight quickly and fine-tuning their lung and brain function. They are becoming more responsive to light and sound from the outside world as they prepare for the big transition to life outside.

8 min read Medically Reviewed Updated 2024-05-01
🎃
Your baby is the size of a Butternut squash
39 cm
Length
1.1 kg
Weight
Week 1Week 13 - End of Trimester 1Week 27Week 42

Baby's Development This Week

In week 29, your baby is putting on weight quickly and fine-tuning their lung and brain function. They are becoming more responsive to light and sound from the outside world as they prepare for the big transition to life outside.

  • Muscles and lungs continue maturing.
  • The fetus is very active — you'll feel strong kicks and rolls.
  • Fat continues to accumulate, making skin less wrinkled.
  • The head is growing to accommodate the rapidly developing brain.
  • The fetus can regulate its own body temperature.
  • About 38.6cm — the size of a butternut squash.

Your Symptoms at Week 29

As you progress through week 29, you may feel more physical strain as your baby grows. Back pain and difficulty finding a comfortable sleeping position are common. Keep your feet up when you can and take pride in how far you've come in this incredible process.

Pelvic pressure
Maternity support belt and resting with feet up. (moderate)
Frequent urination
Plan bathroom access; don't reduce fluid intake. (moderate)
Insomnia
Limit screen time before bed; try meditation or calming music. (moderate)
Hemorrhoids
Fiber, hydration, sitz baths, and witch hazel pads. (moderate)

When to Call Your Doctor

  • Sudden decrease in fetal movement
  • Persistent or worsening headaches
  • Contractions that increase in frequency
  • Vision changes or seeing spots

Week 29 Checklist

  • Continue kick counts twice daily (essential)
  • Pack your hospital bag (start gathering essentials) (recommended)
  • Discuss labor signs with your provider (recommended)
  • Arrange help for after the birth (family, postpartum doula) (recommended)

Nutrition in the Third Trimester

By the third trimester, your baby’s growth is at its fastest, and it’s common for appetite, digestion, and comfortable meal sizes to shift again as the growing uterus puts more pressure on the stomach. Many people find smaller, more frequent meals more comfortable than large ones during this stage, and heartburn becomes more common as a result of this physical pressure.

  • Continue your prenatal vitamin through the end of pregnancy — some providers also recommend starting or adjusting iron supplementation in the third trimester depending on bloodwork.
  • Smaller, more frequent meals can ease the heartburn and fullness that often become more pronounced as the uterus takes up more abdominal space.
  • Stay well hydrated — fluid needs remain elevated, and dehydration can contribute to Braxton Hicks contractions.
  • Continue prioritizing protein, iron, and calcium, which remain important for your baby’s rapid growth in the final weeks.
  • Some people find preparing and freezing meals ahead of delivery useful, since appetite and energy for cooking can fluctuate in these final weeks.
  • Continue avoiding alcohol, raw/undercooked proteins, unpasteurized dairy, and high-mercury fish through the end of pregnancy.

Staying Active in the Third Trimester

Exercise in the third trimester often needs to be scaled back in intensity as the belly grows larger and balance becomes more of a factor, but staying appropriately active (if cleared by your provider) can still help with sleep, mood, and physical comfort in these final weeks. Walking and prenatal-specific stretching or yoga are commonly well-tolerated options. Pay attention to your body’s signals more than usual here — this is a stage where providers generally recommend erring toward caution and lower intensity rather than pushing to maintain a pre-pregnancy pace.

For Partners: Supporting the Third Trimester

The final stretch of pregnancy often brings physical discomfort, disrupted sleep, and anticipation (or anxiety) about labor — partners can help by taking on more of the physical tasks around the house, being flexible and present as due-date logistics come together, and learning what to expect during labor so they can be a more active, informed support during delivery. This is also a good time to finalize practical plans together: the route to the hospital or birth center, who to call, and what the first hours after birth might look like.

Frequently Asked Questions

Medical Disclaimer: This content is for informational purposes only and is not a substitute for professional medical advice. Always consult your healthcare provider for personalized guidance about your pregnancy.