Third Trimester
Pregnancy Week 30
Your baby is about the size of a cabbage 🥬 — brain growing, vision improving.
🥬
Size comparison
≈ Cabbage
Length
39.9 cm
Weight
1.3 kg
Milestone
Brain growing, vision improving
About 10 weeks to go until your due date (week 40).
Baby's development at week 30
The brain is growing exponentially, developing billions of new neural connections. Your baby's eyesight is improving and they can focus on objects close to their face. The lanugo is beginning to disappear.
Consider a birth preferences document — discuss it with your midwife or OB this week.
Common symptoms at week 30
HeartburnFrequent urinationBraxton Hicks
Eat more of
- ✓Calcium & Vitamin K (broccoli, kale)
- ✓DHA-rich fish (sardines, salmon — cooked)
- ✓Iron-rich foods to prevent anaemia
- ✓Fibre-rich foods to combat constipation
- ✓Small frequent meals to ease heartburn
- ✓Dates (studies suggest easier labour)
Foods to avoid
- ✕Alcohol
- ✕Gas-producing foods (beans, cabbage) if uncomfortable
- ✕Very spicy food if causing heartburn
- ✕Raw/undercooked meat
- ✕High-sodium processed food
- ✕Large meals that worsen reflux
Medically reviewed by First OPD Medical Team. Last reviewed on .
Based on average milestones from World Health Organization (WHO), ACOG, NHS UK. Educational only — not a substitute for personalised medical advice.
Track every week with a free First OPD account
Save your personalised week, get your due date, and book gynaecologists near you.