33 weeks pregnant
At 33 weeks you are in the third trimester, and your baby measures about 44 cm from head to heel and weighs about 1.92 kg, roughly the length of a full-size computer keyboard. Finalise your birth preferences and talk through pain relief options before the 34-week visit; wills, guardianship and super beneficiaries are the admin for these weeks.
Weighs about 1.92 kg, like a 2 L bottle of milk. Averages from standard growth tables; your scan gives your baby's own numbers.
Your baby at 33 weeks
The skull bones stay soft to pass through the birth canal. Most babies have turned head-down by now and have little room left to move.
How you might feel
Numb or tingling hands from carpal tunnel, pelvic pressure and waking often at night are common.
Finalise birth preferences and talk through pain-relief options.
Call the maternity unit today for any change in your baby's movements, bleeding, fluid loss, a severe headache or vision changes. 13 HEALTH (13 43 25 84) in Queensland; 000 in an emergency.
What's due this week in Australia
Lodge the Parental Leave Pay and Family Tax Benefit claims
You can lodge up to 3 months before the due date through myGov → Centrelink.
RSV vaccine (Abrysvo)
Free under the National Immunisation Program, one dose per pregnancy from 28 weeks and ideally before 36 weeks.
Wills, guardianship, super and insurance
Make or update wills and name a guardian.
34-week antenatal visit
Blood pressure, fundal height, the baby’s position, birth preferences and pain relief, and a feeding plan.
Coming up: Pack the hospital bag and fit the car seat
A rear-facing restraint must be fitted before you can take the baby home.
Coming up: Group B strep swab
A low vaginal–rectal swab, often self-collected at the 36-week visit.
Checklist for the week
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Questions about 33 weeks
How many months is 33 weeks pregnant?
About seven and a half months.
What trimester is 33 weeks?
Week 33 is in the third trimester. In the Australian guidelines Hello Bub follows, the first trimester runs to 13 weeks, the second from 14 to 27 and the third from 28 weeks.
What should a birth plan include?
Your preferences for support people, pain relief, positions, monitoring, cord clamping, skin-to-skin and feeding, written as preferences rather than a script, since labour rarely follows a plan exactly.
Written by the Hello Bub team; medical schedule follows the Australian Pregnancy Care Guidelines; last reviewed 3 November 2026.