33 weeks pregnant
Third trimester about 7 months
At 33 weeks pregnant, your baby is about the size of a pineapple.
Baby this week
About 43cm. The baby's bones are hardening but the skull remains soft and flexible for delivery. The baby is sleeping 90–95% of the time and dreaming.
Did you know? Fetuses spend most of their time sleeping in the womb, and research suggests they experience REM sleep — which means your baby may be dreaming as early as week 28.
What she may be feeling
- Pelvic pressure and lightning crotch
- Braxton Hicks
- Heartburn
- Backache
- Swelling
- Fatigue
- Difficulty breathing
- Frequent urination
Tips for her this week
- Your belly may feel very tight and the baby's movements may feel more like rolls and stretches than kicks.
- Heartburn may be at its worst this week — eating small meals and not lying down after eating helps.
- Discuss pain management preferences with your provider if you haven't finalized them.
- Rest and conserve energy — labor is coming and you'll need it.
For partners
- Talk to her about her fears around labor — having an honest conversation is better than guessing.
- Make sure the car seat is installed and inspected by a certified technician.
- Research pain relief options for labor so you can help her think through choices.
- Practice your labor coaching: breathing cues, massage techniques, encouragement.
Partner to-do list
- Get the car seat inspected by a certified technician
- Practice labor coaching techniques
- Know all pain relief options available at your birthing location
- Review the hospital bag one more time
This week together
- Finalize pain management preferences
- Practice breathing and relaxation techniques
- Review hospital bag contents
- Confirm newborn photographer booking
When to call your doctor or midwife
Contact your care provider right away, or call emergency services, if she has:
- Decreased fetal movement
- Signs of preeclampsia
- Regular contractions before 37 weeks
- Leaking fluid
- Heavy bleeding
Trusted guidance: NHS: Pregnancy · NHS: Pregnancy complications · ACOG: Pregnancy · Pregnancy Info: Your pregnancy
Common questions
How big is the baby at 33 weeks?
At 33 weeks pregnant, your baby is about the size of a pineapple. About 43cm.
How many months is 33 weeks pregnant?
33 weeks pregnant is about 7 months, in the third trimester.
What can partners do at 33 weeks?
Talk to her about her fears around labor — having an honest conversation is better than guessing. Make sure the car seat is installed and inspected by a certified technician.