Pregnancy week 27
This week your baby is about the size of cauliflower — around 36.6 cm and 875 g.
Your baby this week
As the second trimester draws to a close, your baby is about the size of a cauliflower, and the brain is growing quickly, developing its folds and grooves. Your baby may start to hiccup in the womb, which you might feel as small, rhythmic pulses in your belly. The lungs are maturing further, and your baby can now open and close their eyes and respond to light that filters into the womb.
Your body this week
You may feel more tired or heavy as the second trimester ends, and perhaps some leg cramps, especially at night. Mild breathlessness during activity is also common, and all of these changes are a natural part of your journey.
Tips for this week
Gently stretch your legs and flex your ankles before bed to ease cramps, and keep up with hydration and a variety of nourishing foods. Take short breaks through the day and try not to overexert yourself. This is a lovely time to start thinking about your birth plan and discussing it with your doctor or midwife.
Frequently asked questions
How big is the baby at week 27?+
At week 27, your baby is about the size of cauliflower — roughly 36.6 cm and 875 g, though every baby grows at its own pace.
Which trimester is week 27?+
Week 27 falls in the Second trimester.
How many weeks are left at week 27?+
At week 27, you have about 13 weeks to go until the typical 40-week due date.
Is week 27 normal?+
Every pregnancy is different. If you feel well and your check-ups are on track, week 27 is usually a normal part of the journey — but always reach out to your doctor or midwife with any concern.
This guide is for general information and reassurance — it isn't medical advice. Always follow your doctor or midwife for your own pregnancy.