Week by week · Trimester 3

Pregnancy Week 33

Your baby is about the size of a pineapple this week.

👶 Your baby this week

The skull stays flexible for birth, but other bones harden. The immune system takes antibodies from you.

💛 How you might feel

Your blood volume has grown ~45%. Warmth, mild swelling, and vivid dreams are typical.

✅ This week's to-do

Pack the hospital bag using our checklist — done by week 36 means no panic packing.

Please note: General information, not medical advice. Every pregnancy is different — your provider's guidance always wins.

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One short email when you enter a new week — what's developing, what to feel ready for, what to do. Timed to you.