30 weeks pregnant
At 30 weeks you are in the third trimester, and your baby measures about 40 cm from head to heel and weighs about 1.32 kg, roughly the length of a pineapple with its crown. The easy window for childcare waitlists closes this week, and in a first pregnancy the 31-week antenatal visit falls between now and 32+6.
Weighs about 1.32 kg, like a pineapple. Averages from standard growth tables; your scan gives your baby's own numbers.
Your baby at 30 weeks
The baby regulates its own temperature better; bone marrow makes red cells. Curled in the fetal position and filling out with fat; the eyes open from about week 26.
How you might feel
Breathlessness and swollen feet are common; sudden swelling of the face or hands, a severe headache or vision changes need a call the same day.
Breathlessness and swollen feet are common. Report sudden swelling, headaches or vision changes the same day.
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.
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.
31-week antenatal visit (first pregnancy)
Blood pressure, fundal height, movements and a check of results.
Wills, guardianship, super and insurance
Make or update wills and name a guardian.
Coming up: 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.
Checklist for the week
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Questions about 30 weeks
How many months is 30 weeks pregnant?
About seven months.
What trimester is 30 weeks?
Week 30 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.
Is swelling normal at 30 weeks?
Mild swelling of the feet and ankles by evening is normal. Sudden swelling of the face or hands, especially with a headache, vision changes or pain under the ribs, can be pre-eclampsia and needs the maternity unit the same day.
Written by the Hello Bub team; medical schedule follows the Australian Pregnancy Care Guidelines; last reviewed 3 November 2026.