Pregnancy Guide: Your Third Trimester | Symptoms, Baby Development & What to Do Now

Pregnancy Guide: Your Third Trimester | Symptoms, Baby Development & What to Do Now

28 Weeks Pregnant

BABY IS THE SIZE OF AN: EGGPLANT

Welcome to the third trimester. At 28 weeks pregnant, you are officially in the final stretch. With around 12 weeks to go, your baby is growing rapidly and your body is working harder than ever.

This stage often brings a shift. The excitement builds, the physical changes become more noticeable, and preparation for birth starts to feel real. Whether this is your first baby or your third, here is what you can expect at 28 weeks pregnant — physically, emotionally and practically.

Baby Development at 28 Weeks

At 28 weeks, your baby weighs around 1kg and measures approximately 37–38cm long. Their brain is developing rapidly, forming deep grooves and folds. Lungs are maturing and practising breathing movements, although they are not yet ready for life outside the womb.

You may notice:

  • Stronger, more defined kicks and rolls
  • Regular patterns of movement
  • Occasional hiccups

If movements change significantly or decrease, contact your midwife or maternity provider.

Common 28 Week Pregnancy Symptoms

Every pregnancy is different, but common third trimester symptoms include:

  • Lower back and pelvic pain
  • Braxton Hicks contractions
  • Shortness of breath
  • Heartburn and reflux
  • Swollen hands and feet
  • Fatigue
  • Pregnancy insomnia

Hydration, gentle stretching, supportive footwear and side sleeping with pillows between the knees can help manage discomfort.

Emotional Shifts in the Third Trimester

It is completely normal to feel a mix of excitement and apprehension. You may find yourself thinking more about birth, newborn life and how your family dynamic will change.

Common thoughts at this stage:

  • “Am I ready for labour?”
  • “How will I cope with the fourth trimester?”
  • “Will I manage sleep deprivation?”
  • “How will my older child adjust?”

Talking through these feelings with your partner, friends or care provider can be grounding. Writing them down in a Pregnancy Journal can also help you process the transition into motherhood or into becoming a parent of more than one.

What To Do at 28 Weeks Pregnant

1. Book or Attend Antenatal Classes

Now is a great time to start birth preparation classes. Many cover labour, breastfeeding, newborn care and recovery. A baby first aid course can also provide reassurance.

2. Start Planning Your Maternity Leave

If you are employed, confirm leave dates and entitlements. If self employed, think realistically about workload in the final weeks and postpartum period.

3. Begin Gentle Nesting

Rather than overhauling your entire house, focus on practical essentials:

  • Wash baby clothes
  • Set up a safe sleeping space
  • Start gathering hospital bag items
  • Install or check your car seat

4. Monitor Iron Levels

Low iron is common in the third trimester and can contribute to fatigue, dizziness and irritability. If you feel unusually exhausted, ask your provider to check your levels.

5. Prioritise Rest

You may feel pressure to “get everything done” before baby arrives. Rest is productive. Growing a human is work.

Preparing Older Siblings

If you already have children, 28 weeks is a good time to begin preparing them gently. Involve them in small decisions, read books about becoming a sibling and talk openly about what newborn life might look like.

Looking Ahead

The third trimester can feel long and short all at once. These weeks are physically demanding but also deeply transitional. You are not just preparing revealing baby clothes and hospital bags — you are preparing to meet someone who will change your world.

If you are documenting your journey, you might also enjoy reading:

If after reading this you’d like to share your own pregnancy journey, please email megan@forgetmenotjournals.com.

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