What to Expect in Your Third Trimester (Guide for parents in the UK)

The third trimester can feel like a strange mix of excitement, impatience and “oh wow this is getting real.”

If you’re entering weeks 28–40 of pregnancy, your body is working incredibly hard. You may be feeling more tired again, noticing new aches and pains, and starting to think seriously about birth and meeting your baby.

If you're based in West Malling, Maidstone or anywhere in Kent and wondering what’s normal in the third trimester — this guide will help you feel calmer and more prepared.

So What to Expect in the Third Trimester?

When Does the Third Trimester Start?

In the UK, the third trimester begins at 28 weeks and continues until birth.

This is when:

• Baby is rapidly gaining weight

• Your uterus is expanding upwards

• Hormones are preparing your body for labour

• You’ll usually have more frequent midwife appointments

It’s also when many parents realise they’d like more preparation for birth — which is why this is often when bookings increase for antenatal classes in Kent.

Common Third Trimester Symptoms

Every pregnancy is different, but some common experiences include:

1️⃣ Increased Tiredness

That second trimester energy boost often fades. Your body is supporting rapid fetal growth and preparing for labour.

Rest is not laziness — it’s physiological preparation.

2️⃣ Back Pain & Pelvic Discomfort

As baby grows and your centre of gravity shifts, pressure increases on your lower back and pelvis.

This is where pregnancy yoga can be especially supportive. Gentle movement, breathwork and pelvic mobility can reduce discomfort and help you feel more balanced.

3️⃣ Braxton Hicks Contractions

These are practice contractions. They can feel like tightening across your bump but are usually irregular and settle with rest or hydration.

If contractions become regular, stronger, or painful — always contact your midwife for guidance.

4️⃣ Feeling Emotional or Overwhelmed

The reality of birth and parenthood can suddenly feel very close.

This is completely normal.

The third trimester is not just physical preparation — it’s emotional preparation too.

Important Appointments in the Third Trimester (UK)

In most UK pregnancies, you’ll have midwife appointments around:

• 28 weeks

• 31 weeks

• 34 weeks

• 36 weeks

• 38 weeks

• 40 weeks

Your midwife will monitor:

• Baby’s growth

• Your blood pressure

• Urine checks

• Baby’s position

This is also when discussions about birth preferences usually begin.

When Should You Start Antenatal Classes?

Ideally, antenatal classes are completed between 28–34 weeks.

This gives you time to:

• Understand how labour works

• Learn breathing and relaxation techniques

• Discuss birth preferences

• Prepare for feeding

• Build confidence before those final weeks

Leaving it too late can mean:

• Fewer class options

• Feeling rushed

• Going into labour without feeling fully informed

If you’re in West Malling or Maidstone and haven’t yet booked a class, the third trimester is the perfect time.

How to Prepare in the Third Trimester

Here are some gentle, practical ways to feel more prepared, when we are thinking about what to expect in the third trimester:

✔️ Start Thinking About Birth Preferences

What environment helps you feel calm? What pain relief options would you like to understand better?Who will support you?

✔️ Practice Relaxation

Breathing techniques and guided relaxation aren’t just “nice extras.”They help reduce fear and tension, which can positively impact labour.

✔️ Keep Moving (Gently)

Pregnancy yoga or light stretching can:

• Ease back pain

• Improve sleep

• Encourage optimal baby positioning

• Help you feel more in control of your body

✔️ Pack Your Hospital Bag

Most parents pack between 32–36 weeks.Having it ready reduces last-minute stress.

A Note on Baby’s Position

By around 32–36 weeks, many babies begin settling into a head-down position.

If your baby isn’t head-down yet — try not to panic. There is still time, and movement, posture awareness and relaxation can sometimes support optimal positioning.

Emotionally Preparing for Birth

One of the biggest shifts I see in the third trimester — through my antenatal courses and pregnancy yoga classes — is confidence.

When you understand:

• What contractions are doing

• How your body works in labour

• How to make informed choices

• How your birth partner can support you

Birth becomes less frightening and more manageable.

Preparation reduces fear. And reduced fear often leads to a calmer experience.

If You’re in Kent and Want More Support

If you’re in your third trimester and would like structured, supportive preparation, my antenatal courses in West Malling are designed to help you feel:

• Calm

• Informed

• Supported

• Ready

Whether this is your first baby or not, the third trimester is a powerful time to prepare — physically and emotionally.

You don’t have to figure it all out alone.

Join Adora Birth Antenatal Courses