All weeks
Second Trimester
Week 25 of pregnancy
Your baby is the size of a cauliflower.
Length: 34.6 cm / 13.6 in · Weight: 660 g / 23.3 oz
Baby at 25 weeks
- Hair colour + texture starting to develop.
- Reflexes maturing — startle response.
- Lungs producing more surfactant.
What you may feel
- Bigger, lower bump.
- Possible haemorrhoids.
- Restless legs syndrome.
- Heartburn.
This week’s checklist
- Eat fibre-rich foods + hydrate to avoid constipation.
- Sleep with extra pillows.
- Move regularly to avoid restless legs.
Key milestone
Hair starts to develop colour + texture.
Doctor / midwife visits
25-week appointment (first-time mums NHS).
Top foods this week
Educational only — not medical advice. Always consult your midwife or GP. Sources: NICE NG201 antenatal care, NICE NG207 inducing labour, NHS, RCOG. Read the full medical disclaimer.