Week 33: Bones and brains
You’re 33 weeks pregnant — about 7 weeks to go. Your baby is roughly the size of a pineapple.
Size of
a pineapple
Length
43.7 cm
17.2 in · head to heel
Weight
1.92 kg
67.7 oz
Your baby this week
The bones are hardening, though the skull stays soft and flexible to ease the journey through the birth canal. Your baby’s immune system is gaining antibodies from you.
Your body & how you might feel
You may feel warm and find sleep elusive. Aches in your back and pelvis are common as your body produces relaxin to loosen the joints.
Common symptoms at week 33
- Pelvic pain
- Insomnia
- Feeling hot
- Clumsiness
This week’s tip: A warm (not hot) bath, gentle stretching and a consistent wind-down routine can make restless nights a little easier.
A gentle reminder: This is an estimate, not medical advice. Dates and figures are general guidance — every pregnancy is different. Your healthcare provider’s assessment, especially from an early ultrasound, always takes priority. Always speak with your provider about your pregnancy.
Week 33 FAQs
How big is the baby at 33 weeks?
At 33 weeks pregnant, your baby is roughly the size of a pineapple, about 43.7 cm (17.2 in) long and around 1.92 kg. These are typical averages — every baby grows at its own pace.
How many months is 33 weeks pregnant?
33 weeks pregnant is about 7 and a half months, in the third trimester, with about 7 weeks to go until your due date.
What are common symptoms at 33 weeks?
Common experiences around week 33 include pelvic pain, insomnia, feeling hot, clumsiness. Symptoms vary widely — contact your provider if anything worries you.