All Pregnancy Weeks
Third TrimesterWeek 31 of 40

Pregnancy Week 31: The Senses

Updated

Your baby this week
About the size of a coconut
~16.2 in · ~3.3 lb

Medical Disclaimer: Content is for informational purposes only and does not replace professional medical advice. Always consult your healthcare provider.

How your baby is growing this week

Coconut size — 16.2 inches, 3.3 lbs. All five senses are fully functional. Eyes track light. Ears hear clearly. Taste buds work. Baby responds to touch and temperature. Brain synapses firing at record speed.

What your partner is going through

Nesting instinct kicks in hard — sudden intense urge to clean, organize, and prepare the house. She may reorganize the nursery closet at midnight. Energy comes in bursts followed by crashes.

What to focus on this week, dad

  • 01Gear Assembly: build the crib, swing, bouncer, and pack-n-play. Break down all the boxes and recycle them immediately — the cardboard pile gets out of control fast
  • 02Hospital bag: start packing. Her bag: robe, nursing bra, lip balm, phone charger, going-home outfit. Your bag: snacks, phone charger, change of clothes, toothbrush, pillow
+1 more focus item in the full briefing for week 31 — Start free

Connect with your partner

Support the nesting energy. Do not fight the urge to clean at weird hours. Channel it productively: if she wants to reorganize, help move heavy things. If she wants to clean, handle the chemicals.

Source: American Pregnancy Association

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