Pregnancy Week By Week

34 Weeks Pregnant: Development, Symptoms and Care

At 34 weeks pregnant, your baby is still growing and your care team may be discussing the final weeks of pregnancy. This is a useful time to review your birth preferences, upcoming tests and practical support. A symptom is worth mentioning whenever it worries you, even between appointments.

Your baby’s development at 34 weeks

Your baby’s immune system continues to develop, and they are swallowing amniotic fluid and passing urine. You may feel strong kicks and rolling movements. Individual babies grow differently; a week-by-week guide cannot tell you their size or replace checks of growth and wellbeing.

Body changes and symptoms

Discomfort and tiredness may be more noticeable. Gradual swelling can occur, but sudden swelling, especially with headache, vision changes or pain under the ribs, needs immediate assessment. Pain or swelling in one leg also needs urgent care.

Irregular tightenings can happen. At 34 weeks, regular or painful contractions, pelvic pressure, persistent back or abdominal pain, bleeding or leaking fluid still need immediate assessment for possible preterm labour. Do not wait for your planned appointment.

Start every sleep on your side, either left or right, including naps. If you wake on your back, turn onto your side. Pillows may help you get comfortable, but persistent pain or breathing difficulty deserves medical advice.

Movement does not become less important

Pay attention to your baby’s usual strength and pattern rather than a universal kick count. Call your midwife, doctor or maternity unit immediately for reduced, weaker or concerningly changed movement.

Do not wait until tomorrow, try to trigger movement with food or drink, or rely on a home Doppler. If your team is unavailable, go to a hospital maternity or emergency unit. Babies should keep moving until birth; less space is not a reason to dismiss a reduction.

Anti-D and tests coming up

If you are RhD-negative, check whether a further Anti-D injection is due around 34 weeks. The plan depends on your antibody results and, where available, the baby’s predicted RhD blood type. Bleeding or abdominal injury may need additional assessment or treatment, so do not wait for a scheduled injection.

Ask how your service approaches group B streptococcus, or GBS. Some services offer a vaginal and rectal swab around 35 to 37 weeks; others assess risk factors rather than routinely testing everyone. Testing is your choice, and your clinician can explain what a result would mean.

GBS can be carried without symptoms. If you carry it or have relevant risk factors, antibiotics during labour may be recommended to reduce the baby’s risk of early infection. Let the team know about medicine allergies. Our prenatal tests guide can help you prepare questions.

Vaccination and practical preparation

If RSV vaccination is still outstanding, ask about Abrysvo now. It is recommended in each pregnancy from 28 weeks, with vaccination by the end of 36 weeks encouraged. If whooping cough vaccination was missed, ask about receiving it as soon as possible rather than assuming the ideal window was a deadline.

Check what your hospital wants you to bring. Paperwork, comfortable clothes, maternity pads, baby clothes and a phone charger are a useful start. Confirm your support person and arrangements for other children or pets. Your plan can stay simple and change as you learn what you need.

When to seek medical help

In Australia, call 000 for heavy bleeding, severe abdominal pain, severe breathing difficulty, chest pain or collapse. Do not drive yourself if faint or very unwell.

Contact your GP, midwife or hospital immediately for vaginal bleeding, leaking fluid, fever, vomiting that prevents drinking, severe headache, vision changes, sudden swelling or pain under your ribs. Regular or painful contractions, pelvic pressure or persistent lower back or abdominal pain before 37 weeks may be signs of early labour: call your maternity team and go to hospital. Seek urgent care if your usual team is unavailable.