29 weeks pregnant
At 29 weeks you are in the third trimester, and your baby measures about 39 cm from head to heel and weighs about 1.15 kg, roughly the length of a bunch of rhubarb. Written notice of parental leave is due about now if you plan to stop work near 40 weeks; the Parental Leave Pay calculator gives your exact date.
Weighs about 1.15 kg, like a 1 L carton of milk. Averages from standard growth tables; your scan gives your baby's own numbers.
Your baby at 29 weeks
Muscles and lungs are maturing; the head grows to fit the brain. Curled in the fetal position and filling out with fat; the eyes open from about week 26.
How you might feel
Tiredness returns for many, with heartburn, constipation and needing to wee often as the baby presses on the bladder.
Written notice for parental leave is due about now if you are stopping work at 39–40 weeks.
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
Whooping cough (pertussis) vaccine
Free under the National Immunisation Program in every pregnancy.
Put your name on childcare waitlists
If you plan to use childcare in the first year, many centres have waitlists of 6–12 months.
Lodge the Parental Leave Pay and Family Tax Benefit claims
You can lodge up to 3 months before the due date through myGov → Centrelink.
28-week antenatal visit
Blood pressure, fundal height, the glucose and blood results, and the start of the third trimester.
RSV vaccine (Abrysvo)
Free under the National Immunisation Program, one dose per pregnancy from 28 weeks and ideally before 36 weeks.
Give written notice of parental leave
The Fair Work Act requires at least 10 weeks’ written notice before unpaid parental leave starts.
Wills, guardianship, super and insurance
Make or update wills and name a guardian.
Coming up: 31-week antenatal visit (first pregnancy)
Blood pressure, fundal height, movements and a check of results.
Coming up: 34-week antenatal visit
Blood pressure, fundal height, the baby’s position, birth preferences and pain relief, and a feeding plan.
Checklist for the week
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Questions about 29 weeks
How many months is 29 weeks pregnant?
About six and a half months.
What trimester is 29 weeks?
Week 29 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.
How much notice do I give my employer for parental leave?
Written notice well before the leave starts, then a confirmation of the exact dates closer to the time. The Parental Leave Pay calculator dates both for your due date, and the Fair Work Ombudsman sets the rules.
Written by the Hello Bub team; medical schedule follows the Australian Pregnancy Care Guidelines; last reviewed 3 November 2026.