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Baby on the Way

Pregnancy week 34

Trimester 3

About the size of a cantaloupe

Length (crown to heel)45 cm
Weight2,146 g
Heart rate110–160 bpm

Measurements are averages; every baby is different.

About the size of a cantaloupe

Your baby’s development

At week 34 your baby is about 45 cm long and weighs around 2146 g, similar to a cantaloupe melon. The skin is now covered with vernix, a creamy protective coating that keeps it moist and shielded in the amniotic fluid. The nervous system and lungs keep maturing, and most babies born from this point on do well with appropriate care. Still, every baby is different, and each extra day inside supports development. Your baby clearly separates sleep from wakefulness. Nails may reach beyond the fingertips. The first stool, called meconium, begins to collect in the bowel. In most babies the head is down by now, though some change position before birth. Your baby keeps moving to strengthen the muscles and get ready for life outside. Final preparations for how the lungs and other organs will work after birth continue in these days too.

Changes in the mother

As the baby moves lower you may feel more pressure and heaviness in the pelvis, and walking can become harder. Constipation, haemorrhoids and varicose veins are common at this stage. Mild Braxton Hicks contractions may continue. To tell them from labour, notice whether they are regular and whether they come closer together and grow stronger. It is a good time to prepare your hospital bag; many people find it calming to pack between now and week 36. Learning about breastfeeding, baby care and the weeks after birth can also help, and whichever way you choose, every path is valid. Having questions, sleepless nights or sudden bursts of energy, the so-called nesting urge, is very common. Be gentle with yourself and do not hesitate to ask for help.

To do this week

  • Look through the hospital bag list and start packing.
  • Gather ID, health card and antenatal notes in one place.
  • Review your plan for getting to hospital and your emergency numbers.
  • Fit the baby's car seat and learn how to use it.

Tip for the partner

Alongside the hospital bag, prepare your own spare items and a phone charger.

Nutrition tip

Enough fibre and fluids can help ease constipation and haemorrhoid symptoms.

Symptoms to discuss with a doctor

  • If you have vaginal bleeding, a sudden gush of fluid, or regular contractions before week 37, contact your healthcare provider or hospital straight away.

If you notice any of these symptoms, contact your doctor. In an emergency, call your local emergency number.

Sources: ACOG, NHS, DSÖ

The information on this site is for general information only and does not replace medical advice, diagnosis or treatment. Consult your doctor or midwife for health decisions. In an emergency, call your local emergency number.

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