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Week 33 of Pregnancy

Your baby is the size of a Pineapple

17.2 in (43.7 cm)67.7 oz (1920 g)
Third Trimester

Baby Development This Week

Baby's bones are hardening, except for the skull which stays flexible for delivery. Baby is accumulating fat and looking more like a newborn.

What You Might Be Feeling

Difficulty sleeping, hip pain, and pelvic pressure are common. You may feel "lightning crotch" — sharp pains in the pelvis.

Medical Appointments and Tests

If you're planning a hospital birth, now is a good time to pre-register.

Frequently Asked Questions

How big is my baby at 33 weeks pregnant?

At week 33, your baby is about the size of a pineapple — approximately 17.2 inches long and weighing about 67.7 ounces.

What should I expect at 33 weeks pregnant?

At 33 weeks, your baby is the size of a pineapple. Every pregnancy is different, but common experiences at this stage include physical changes, new symptoms, and exciting developmental milestones for your baby.

Want to know your due date?

Get your personalized pregnancy story card with milestones, zodiac sign, and more.

Calculate Your Due Date
Note: This calculator provides estimates based on standard medical formulas. Please consult your healthcare provider for personalized guidance.