Trimester 3
34 Weeks Pregnant
In week 34, 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.
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Your baby is the size of a Cantaloupe
45 cm
Length
2.1 kg
Weight
Week 1Week 13 - End of Trimester 1Week 27Week 42
Baby's Development This Week
In week 34, 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.
- The lungs are nearly mature.
- The central nervous system and lungs are in a critical maturation phase.
- Vernix caseosa thickens.
- Fat layers round out the body and face.
- The fetus is about 45cm — the size of a cantaloupe.
- Fingernails reach the fingertips.
Your Symptoms at Week 34
As you progress through week 34, 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.
Fatigue
Nap when possible; go to bed early. (severe)
Nap when possible; go to bed early. (severe)
Blurry vision
Fluid retention affects eyes; usually temporary. (mild)
Fluid retention affects eyes; usually temporary. (mild)
Swollen feet and ankles
Elevate feet; compression socks during the day. (moderate)
Elevate feet; compression socks during the day. (moderate)
Pelvic pressure
Rest frequently; maternity support belt. (moderate)
Rest frequently; maternity support belt. (moderate)
When to Call Your Doctor
- Sudden or severe vision changes
- Regular contractions before 37 weeks
- Gush of fluid from vagina
- Decreased fetal movement
Week 34 Checklist
- ✓Discuss Group B Strep (GBS) testing (done at 36 weeks) (recommended)
- ✓Finalize your birth preferences with your provider (essential)
- ✓Confirm your pediatrician choice (recommended)
- ✓Have your baby shower if not done yet (optional)
Frequently Asked Questions
Continue Your Pregnancy Journey — Week 34
← →
Week 33 of Pregnancy
Review what happened last week with your baby's development
← →
Week 35 of Pregnancy
What's coming next week — new developments and symptoms to expect
Guide
Third Trimester Overview
Everything happening during your third trimester — symptoms, tests, and milestones
Symptom
Braxton Hicks Contractions
How to tell practice contractions from the real thing
Symptom
Swollen Feet & Ankles
Normal swelling vs. warning signs of preeclampsia
Tool
Kick Counter
Monitor baby kicks — 10 movements in 2 hours is a healthy baseline
Related
Group B Strep Test
Routine test between weeks 35–37 — what a positive result means
Nutrition
Third Trimester Nutrition
Foods for energy, labor prep, and healthy final weight gain
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.