Pregnancy week 33
This week your baby is about the size of a pineapple — around 43.7 cm and 1918 g.
Your baby this week
Your baby is now about the size of a pineapple and keeps gaining weight, laying down fat that gives the skin a fuller, smoother look. The brain is developing rapidly, and reflexes like sucking, breathing, and swallowing are becoming better coordinated in preparation for life outside the womb. The bones of the skull stay soft and not fully fused, which helps the head pass more easily through the birth canal. Many babies settle head-down around now, though every baby follows its own timing.
Your body this week
You may feel more short of breath as your uterus presses against your diaphragm, along with some tingling or mild swelling in your hands and feet. It is common to notice practice Braxton Hicks contractions and to struggle to find a comfortable sleeping position. Experiences vary from woman to woman, so never hesitate to check in with your doctor about anything that worries you.
Tips for this week
Try sleeping on your left side with a pillow between your knees for better comfort and circulation. Keep sipping water and eat small, frequent meals if your stomach feels full quickly. Start jotting down questions for your doctor before each visit so nothing important slips your mind.
Frequently asked questions
How big is the baby at week 33?+
At week 33, your baby is about the size of a pineapple — roughly 43.7 cm and 1918 g, though every baby grows at its own pace.
Which trimester is week 33?+
Week 33 falls in the Third trimester.
How many weeks are left at week 33?+
At week 33, you have about 7 weeks to go until the typical 40-week due date.
Is week 33 normal?+
Every pregnancy is different. If you feel well and your check-ups are on track, week 33 is usually a normal part of the journey — but always reach out to your doctor or midwife with any concern.
This guide is for general information and reassurance — it isn't medical advice. Always follow your doctor or midwife for your own pregnancy.