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Pregnancy Guide·Second Trimester

Week 26: Eyes Open

Courgette (~23cm crown-rump)·Last reviewed: 25 April 2026
Quick answer

At week 26, your baby opens their eyes for the first time. They can respond to sound with an increased pulse and brain wave activity is ramping up. According to Nuhah's pregnancy guide, your baby weighs around 900g now.

Baby development at week 26

Eyes open for the first time. The baby can see light filtering through the uterine wall and will turn towards bright light. They respond to sound with an increased pulse. Brain wave activity ramps up significantly, and sleep patterns become more defined. The baby weighs around 900g and is about 35.6cm from head to toe. Lungs continue to mature.

Your body this week

Your bump is getting larger and movement is strong and regular. You may notice your belly moving visibly when the baby kicks or shifts position. Swollen feet and ankles are increasingly common, especially at the end of the day. Some people experience carpal tunnel syndrome (tingling or numbness in the hands) due to fluid retention. Heartburn may worsen as your uterus pushes against your stomach.

Things to do this week

1
Pay attention to your baby's movement patterns - you should feel regular activity
2
Start thinking about your maternity leave dates and workplace arrangements
3
Consider what support you will need after the birth
4
If you haven't started your birth plan, now is a good time

Frequently asked questions

When do babies open their eyes in the womb?

Babies first open their eyes around week 26. They can see light and dark through the uterine wall and will respond to bright light by turning towards or away from it. Eye colour is not yet established - this develops in the months after birth.

Should I be worried about swollen feet?

Mild swelling in the feet and ankles is very common in pregnancy, especially later on. Elevating your feet, staying active, and drinking plenty of water can help. Sudden or severe swelling, especially with headaches or vision changes, should be reported to your midwife immediately.

Related reading

Wellbeing
The Second Trimester: What to Expect

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