Week 30: Baby's Brain Continues Rapid Growth
Your baby's brain is undergoing significant growth this week, and the bone marrow has now fully taken over red blood cell production.
Baby's Development
Your baby's brain continues its rapid growth and development, forming increasingly complex folds. Bone marrow has now completely taken over red blood cell production, a process that began transitioning from the liver and spleen weeks ago.
Your baby's eyesight is also developing further, and while there's nothing much to see in the womb, the visual system continues maturing in preparation for the outside world.
Changes in Your Body
Your uterus is roughly the size of a basketball at this point. Many women begin counting down the remaining weeks more actively now, and physical discomfort tends to increase gradually from here.
Common Symptoms
At 30 weeks, common experiences include:
- Increased backaches and pelvic pressure
- Difficulty sleeping
- Shortness of breath
- Braxton Hicks contractions
- Swelling
- Forgetfulness or difficulty concentrating (sometimes called "pregnancy brain")
Nutrition This Week
Continue a nutrient-dense diet, with particular attention to iron and calcium as your baby's skeletal system and blood supply continue developing rapidly.
Safe Exercises
Gentle stretching, prenatal yoga, and short walks remain beneficial. Listen closely to your body's signals about what feels good versus what feels like too much right now.
Medical Checklist
This week:
- Continue or start your hospital bag preparations
- Discuss pain management options for labor with your provider if you haven't yet
- Review your maternity leave plans if applicable
Doctor Visit Guide
Routine visits continue at the 2-3 week interval. This is a good time to start discussing your specific birth preferences in more detail, including pain management options.