Third trimester

34 weeks pregnant

At 34 weeks you are in the third trimester, and your baby measures about 45 cm from head to heel and weighs about 2.1 kg, roughly the length of a rolling pin. The 34-week antenatal visit falls between 33 and 35+6, the second anti-D injection is due this week if you are Rh negative, and the hospital bag should be packed by 36 weeks.

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About the length of a rolling pin45 cm head to heel · 2.1 kg
Baby45 cm
A rolling pin45 cm

Weighs about 2.1 kg, like a 2 kg bag of rice. Averages from standard growth tables; your scan gives your baby's own numbers.

Your baby at 34 weeks

Fingernails reach the fingertips; the nervous system is maturing. Most babies have turned head-down by now and have little room left to move.

How you might feel

Breathlessness may ease a little if the baby drops; pelvic pain, swollen feet and tiredness are common.

34-week visit. Second anti-D if Rh negative. Pack the bag.

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

27+0 – 40+0 wks

Lodge the Parental Leave Pay and Family Tax Benefit claims

You can lodge up to 3 months before the due date through myGov → Centrelink.

Now
28+0 – 36+0 wks

RSV vaccine (Abrysvo)

Free under the National Immunisation Program, one dose per pregnancy from 28 weeks and ideally before 36 weeks.

Now
28+0 – 36+0 wks

Wills, guardianship, super and insurance

Make or update wills and name a guardian.

Now
33+0 – 35+6 wks

34-week antenatal visit

Blood pressure, fundal height, the baby’s position, birth preferences and pain relief, and a feeding plan.

Now
34+0 – 36+6 wks

Pack the hospital bag and fit the car seat

A rear-facing restraint must be fitted before you can take the baby home.

Now
35+0 – 37+0 wks

Coming up: Group B strep swab

A low vaginal–rectal swab, often self-collected at the 36-week visit.

Soon
35+0 – 37+6 wks

Coming up: 36-week antenatal visit

The baby’s position (if breech, turning the baby by ECV is discussed at 36–37 weeks), signs of labour and when to come in, and consent for vitamin K, the hepatitis B birth dose and newborn bloodspot screening.

Soon
See every date on your appointment timeline →

Checklist for the week

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Questions about 34 weeks

How many months is 34 weeks pregnant?

About eight months.

What trimester is 34 weeks?

Week 34 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 I pack in my hospital bag?

For you: Medicare card, hospital letters, comfortable clothes, toiletries, maternity pads and snacks. For the baby: nappies, wraps, two or three outfits and a fitted car seat for the trip home. Public hospitals supply most clinical items.

← 33 weeks pregnant35 weeks pregnant →

Written by the Hello Bub team; medical schedule follows the Australian Pregnancy Care Guidelines; last reviewed 3 November 2026.