3rd trimester · Week 34
34 weeks pregnant
A more mature nervous system
Central nervous system pathways are more organized. Lungs are more capable than a month ago but still benefit from more time. Nursery setup can wait; documents and a ride-to-hospital plan matter more.
How big is your baby at 34 weeks?
- Length
- 45 cm
- Weight
- 2,150 g
- Size
- Lettuce
On average about 45 cm long and 2,150 g. Size comparison: Lettuce.
These are averages; every baby grows at their own pace.
How is your baby developing at 34 weeks?
Vernix is thick. The fetus may have hiccups daily. Length is often about 45 cm; weight near 2.1–2.2 kg. Most are vertex (head-down) by now, not all.
What changes in your body at 34 weeks?
Pelvic pressure, hemorrhoids, and swollen feet at night are frequent. Colostrum leaks are harmless. Sudden severe headache is not something to normalize.
Tips for this week
Ask about Group B strep timing (often 36–37 weeks) and when weekly visits start. If you have pelvic girdle pain, plan rest stops rather than long standing. Seek care for reduced movements, bleeding, or a fever.
