Week 28

Third Trimester

Third Trimester Begins

Welcome to the third trimester. Baby is growing rapidly, preparing for birth, and the final countdown has begun.

Third Trimester begins

This week's tip

💡 Welcome to the third trimester — your body is doing its final sprint. Lean into rest, nourishment, and anything that makes you feel cared for.

Baby this week

🍆

About the size of

an eggplant

Length

37.6 cm

Weight

1.00 kg

Development

  • Baby now weighs approximately 1 kilogram.
  • The brain is developing distinct folds and creases.
  • REM sleep and dreaming may be occurring.
  • Baby blinks, coughs, and hiccups.
  • Bone marrow is now fully responsible for red blood cell production.

How you might feel

  • Breathlessness increases as the uterus pushes against the diaphragm.
  • Trouble sleeping is nearly universal.
  • Braxton Hicks contractions are more frequent.
  • Swelling in hands, feet, and ankles may increase.
  • You may feel your baby's hiccups.

Things to do this week

  • Begin kick counting daily — 10 kicks in 2 hours is reassuring
  • Prepare your hospital bag
  • Research newborn care basics
  • Ensure your car seat is purchased and installed correctly

When to contact your care team

This is general guidance, not medical advice.

  • Contact your care team if contractions are regular, coming every 5–10 minutes.
  • Contact your care team if you experience sudden vision changes, severe headache, or rapid swelling.

Partner tip

Begin learning newborn care basics together — bathing, feeding, settling. Preparation reduces anxiety for everyone.