Week 27 Pregnancy
You are 27 weeks pregnant and in your third trimester. Your baby is about the size of a cauliflower. This week's key development: Closing the Second Trimester. NHS note: Midwife appointment (28 weeks).
Baby's Development
Your baby is about the size of a cauliflower.
Closing the Second Trimester — The brain is developing more complex folds and grooves, increasing surface area at a remarkable rate. Your baby's lungs are maturing, and they're practising rhythmic breathing movements. The second trimester is drawing to a close — you're two-thirds of the way there.
Your Symptoms
- Shortness of breath
- Swelling
- Vivid dreams
Every pregnancy is different. You may experience all, some, or none of these symptoms — and that's completely normal. If anything concerns you, speak to your midwife.
NHS Appointments
Midwife appointment (28 weeks). You'll have blood tests for anaemia and antibodies.
Practical Advice for Week 27
Nutrition
- Continue vitamin D daily.
- Your calorie needs increase slightly in the third trimester — about 200 extra calories per day.
- Eat iron-rich foods — your blood volume peaks around week 28.
- Protein is essential for your baby's growth — include it at every meal.
Exercise
- Keep up gentle exercise — it helps with sleep, mood, and labour preparation.
- Swimming is particularly helpful for relieving swelling and back pain.
- Practise birth positions — squatting, kneeling, and using a birth ball.
- If you feel short of breath during exercise, slow down — your lungs are competing for space.
Wellbeing
- Vivid dreams may return as the third trimester begins.
- Swelling in your feet and ankles is normal — elevate them when you can.
- Shortness of breath improves when the baby drops later in pregnancy.
- Pack your hospital bag — being prepared reduces anxiety.
Preparation
- Your midwife appointment around 28 weeks includes blood tests for anaemia and antibodies.
- If you're Rhesus negative, you'll be offered an anti-D injection.
- Write your birth plan if you haven't started yet.
- Tour the delivery suite at your hospital if tours are available.
Tip of the Week
Pack your hospital bag! It's better to be prepared early.
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