Trimester 2 · Pregnancy

Week 27 of pregnancy

Your baby is now about the length of a folded baby towel (~36.6 cm) and around 2 lb, with a snugger fit in the womb as growth accelerates.

About the size of
Folded Baby Towel
Length
36.6 cm
Weight
≈ 1,000 g (about 2.2 lb)
Clinically reviewed by The Window to the Womb Clinical Governance Team · Last reviewed June 2026

👶Your baby this week

Your baby is now about the length of a folded baby towel (~36.6 cm) and around 2 lb, with a snugger fit in the womb as growth accelerates.

**Lungs are now capable of breathing** with support; air sacs and blood vessels are maturing in preparation for life outside.

**Hiccups** may be more frequent as the diaphragm and lungs practice, they feel like gentle, rhythmic taps or ‘pops’.

Baby’s **hearing is well developed**; voices and sounds are heard (muffled by vernix). Your voice may already be familiar and soothing.

Eyes may be **open** now (or very soon) and can detect **light and dark**; iris colour will continue to develop after birth.

**Taste buds** are very active, flavours from your diet reach the amniotic fluid a couple of hours after you eat.

Baby’s **muscle tone** is improving with all the kicking, rolling and stretching; movements can feel stronger and more coordinated.

Skin is becoming **plumper** as fat deposits build, softening the previously wrinkled appearance; organs continue to mature.

🌸Your body this week

you may notice more **bloating and constipation** due to progesterone and the uterus compressing the stomach and bowel.

You might feel **more tired** and even **snore** thanks to swollen nasal passages; naps and a consistent sleep routine can help.

Mild **swelling (edema)** of feet, ankles, and hands is common now; remove tight rings and choose roomy, supportive footwear.

Your bump is larger and heavier; **round ligament pain**, **backache**, and occasional **Braxton Hicks** ‘practice’ contractions can occur.

This is likely the last week you can fly without a **fitness-to-fly note**, always check airline policies and travel insurance.

Sleeping **on your side** is best as you approach week 28; pillows under the bump and between knees support safe, comfy rest.

💛Symptoms you might notice

Every pregnancy is different. These are common around week 27 — speak to your midwife if anything worries you.

Bloating & Constipation

Prioritise fibre (wholegrains, fruit/veg, pulses) and hydration; eat small, frequent meals and keep moving gently each day.

Snoring & Stuffy Nose

Hormones swell nasal passages. Try a humidifier, saline spray, extra pillows, and side-sleeping. Ask your midwife for tailored advice.

Swelling (Edema)

Elevate feet, avoid standing still for long periods, wear supportive shoes, and stay well hydrated. Report sudden or severe swelling.

Heartburn & Indigestion

Eat slowly, avoid rich/spicy/fatty foods, stay upright after meals, and sleep with your head elevated. Small meals are your friend.

Leg Cramps

Stretch calves before bed, flex toes toward your shins during a cramp, massage the muscle, and hydrate. Ask about magnesium/iron if frequent.

Round Ligament Pain

Aching or sharp twinges at the sides of your bump when changing position are common. Rise slowly, rest, and consider bump support.

Braxton Hicks Contractions

Irregular, mild ‘tightenings’ that ease with rest/hydration. If contractions become regular, painful, or accompanied by bleeding/fluid leak, call triage.

Dizziness or Faintness

Sit or lie on your side with feet elevated at the first sign. Keep snacks and water handy, and change positions slowly.

Itchy Belly & Skin Changes

Moisturise regularly and use cool/oatmeal baths for relief. Report severe generalised itching, especially at night, to your midwife/doctor.

Bleeding Gums

Continue gentle brushing and daily flossing; see your dentist. Hormones can inflame gums, but good oral care reduces risks.

Tips for week 27

Sleep Safely & Comfortably

As you approach week 28, **sleep on your side** (either side). Use pillows to support your bump and between your knees; if you wake on your back, simply roll back onto your side.

Eat for Comfort, Not Two

You don’t need extra calories until week 28. Focus on balanced meals, wholegrains, lean protein, healthy fats, and plenty of fruit and veg.

Hydration & Fibre

Water + fibre are a powerful combo for constipation and bloating. Add beans, lentils, oats, berries, nuts, seeds, and leafy greens.

Travel Check

Flying after this week may require a **fitness-to-fly note** and airline approval. Always confirm airline cut-offs and ensure your insurance covers pregnancy.

Whooping Cough Vaccine

If not yet received, plan your **pertussis vaccine** between **weeks 16–32** to pass immunity to baby via the placenta.

Pelvic Floor & Gentle Exercise

Daily Kegels and regular low-impact movement (walking, swimming, prenatal yoga) support bladder control, posture, and mood. Listen to your body.

Antenatal Classes & Birth Place

Explore NHS/Tommy’s/NCT classes and discuss your **birth setting** options (hospital, midwife-led unit, home). You can change your mind later.

Workplace Rights

You’re entitled to a **workplace risk assessment**, adjustments, extra breaks, a safe role, and **paid time off** for antenatal care.

Wellbeing Matters

If you feels anxious or low, speak to your midwife/GP. Share concerns with someone you trust, support is available and effective.

Contraception Planning

Discuss post-birth contraception now, fertility can return quickly, and short inter-pregnancy intervals carry added risks.

When to Seek Urgent Help

Call your maternity unit immediately for **reduced/no movements**, persistent headaches or vision changes, severe swelling, chest pain, heavy bleeding, fluid leak, or regular painful contractions.

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