All weeks
Third Trimester
Week 33 of pregnancy
Your baby is the size of a pineapple.
Length: 43.7 cm / 17.2 in · Weight: 1.90 kg / 4.19 lbs
Baby at 33 weeks
- Baby's bones harden (except skull — stays soft for birth).
- Immune system gaining maternal antibodies.
- Sleep + wake cycles regular.
What you may feel
- Big bump.
- Pelvic pressure.
- Possible swelling.
- Fatigue.
This week’s checklist
- Rest more.
- Stay hydrated.
- Movement counts daily.
Key milestone
Antibody transfer to baby.
Doctor / midwife visits
No specific appointment.
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.