Week 31

Third Trimester

Five Senses Online

All five senses are functioning. Baby is processing the world and practicing the reflexes they'll need the moment they arrive.

This week's tip

💡 Pelvic floor exercises — even just a few minutes a day — can aid your birth experience and speed your postpartum recovery. Consistent practice now pays off later.

Baby this week

🍍

About the size of

a pineapple

Length

41.1 cm

Weight

1.50 kg

Development

  • All five senses are working.
  • Baby can turn its head toward light.
  • Rapid weight gain continues — about half a pound per week.
  • Toenails are fully formed.
  • The nervous system is maturing rapidly.

How you might feel

  • Frequent urination is common as baby presses on the bladder.
  • You may have difficulty finding a comfortable position at all times.
  • Anxiety about birth may increase — this is very common.
  • Rib pain as baby grows into the upper abdomen.

Things to do this week

  • Pack or finalize your hospital bag
  • Take a hospital tour if you haven't already
  • Discuss birth fears openly with your partner and care team
  • Review your insurance and hospital pre-registration

When to contact your care team

This is general guidance, not medical advice.

  • Contact your care team if you experience decreased fetal movement or any signs of preterm labor.

Partner tip

Have a calm, open conversation about labor: what your partner hopes for, what they're scared of, and how you can help.