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29 Weeks Pregnant

At 29 weeks, the baby’s muscles and lungs are maturing. Constipation and pelvic aches are common.
Baby is about the size ofA butternut squash
LengthAbout 38.6 cm
WeightAbout 1.15 kg
Week 29 of 40, third trimester11 weeks to go

Your baby at 29 weeks

Muscles and lungs are maturing, and the head is growing to make room for the developing brain. The baby’s bones are fully formed but still soft.

Your body at 29 weeks

Constipation and piles (haemorrhoids) are common in late pregnancy. Your hips and pelvis may ache as ligaments soften.

Your checklist this week

  • Eat high-fibre foods and drink plenty of water.
  • Tell your doctor or midwife about pelvic pain: a physiotherapist can help.
  • Keep monitoring your baby’s movements every day.
Week 28
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Your baby this week

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When to call your doctor

  • Bleeding from your vagina
  • Severe pain in your tummy
  • A bad headache, blurred vision or sudden swelling
  • Fluid leaking from your vagina
  • Fever, or pain when you pass urine
  • Later in pregnancy, your baby moving less than usual

In an emergency, call your local emergency number.

Based on ACOG and NHS guidance. Sizes are averages: every baby grows at its own pace.