Baby is the size of a romaine lettuce
👶 Baby's development
Eyes open for the first time! Baby begins to distinguish light and dark. Hearing is near adult-level.
💛 How mom feels
Braxton Hicks contractions may start. Rib pain from kicks is normal.
📖 Tip of the week
The eyelids open for the first time — the baby can see light filtering through the belly wall. Eyelashes and eyebrows are fully formed. Standard Rh factor and antibody testing is typically done around this time.
🔬 Detailed baby development
- The fetus's eyes open for the first time, revealing colored irises (usually blue at this stage)
- Brain activity increases significantly with organized patterns of brain waves detectable
- The immune system is developing as the fetus receives antibodies from the mother through the placenta
- The fetus practices breathing movements regularly, strengthening the diaphragm and lungs
- The network of nerves in the ears is fully connected, allowing more sophisticated sound processing
- The fetus is about 35.6 cm long and weighs approximately 760 grams, roughly the size of a zucchini
🤱 What mom may feel
- Difficulty sleeping in comfortable positions as the belly grows larger
- Increased Braxton Hicks contractions, particularly after physical activity
- Visible movements from the outside — partners can see kicks and rolls through the belly
- Possible blurred vision due to fluid retention changing the shape of the cornea
- Lower back pain and pelvic pressure continue to increase
🏥 Tests and check-ups
No specific tests for week 26, but the glucose challenge test window (24-28 weeks) continues. If your blood type is Rh-negative, the Rh antibody screen should be planned for around 28 weeks. Regular prenatal monitoring of blood pressure is critical for preeclampsia screening.
💡 Tips for this week
- Invite your partner to feel the baby's movements — bonding can start before birth
- Practice relaxation and deep breathing exercises in preparation for labor
- If vision changes occur, mention them at your next appointment to rule out preeclampsia
- Continue to monitor fetal movement patterns and report any significant decrease to your provider
❓ Frequently asked questions
What color will my baby's eyes be?
Most babies are born with blue or dark gray eyes regardless of their final eye color. Melanin production continues after birth, and the final eye color is usually established between 6-12 months of age.
Should I worry about blurred vision?
Mild vision changes from fluid retention are common and usually temporary. However, sudden vision changes (flashing lights, blind spots, severe blurring) can be signs of preeclampsia and require immediate medical evaluation.
Can my baby hear my partner's voice?
Yes, the baby can hear voices from outside the womb. Research shows that newborns can recognize voices they heard frequently in the womb. Encourage your partner to talk, read, or sing to the baby.
📝 Week 26 of pregnancy: what's happening
At week 26, your baby measures approximately 35.6 cm and weighs around 760 g — similar in size to a large courgette. The eyes are beginning to open for the first time — your baby’s eyelids, which have been fused shut since early in the second trimester, are now separating and the baby is able to blink. Lung development continues to be a priority — while the lungs are now capable of breathing if your baby were born now, they would still require significant medical support. The brain continues its rapid growth, increasing in complexity with each passing week.
As your bump grows larger, you may find everyday activities becoming more challenging. Sleeping can be particularly difficult — a full-length pregnancy pillow to support your bump, back, and knees while lying on your side can be transformative. Some women experience restless legs syndrome (an uncomfortable urge to move the legs, particularly at night) during pregnancy, which may be linked to iron or magnesium deficiency; mention this to your midwife. Increasing pressure on the bladder may cause you to need to urinate more frequently, including during the night.
If you have risk factors for gestational diabetes and have not yet had a glucose tolerance test (GTT), this should be arranged as a matter of urgency before week 28. Results outside the normal range are managed through dietary changes, blood sugar monitoring, and sometimes medication, to reduce risks to both mother and baby. Your midwife will also be monitoring your blood pressure closely — rising blood pressure alongside protein in the urine can indicate pre-eclampsia, which requires prompt medical management. Never ignore symptoms such as severe headaches, blurring of vision, or significant upper abdominal pain.
Consider completing your birth plan now or at least drafting the key points. Topics to include are: preferred place of birth, who you want present, pain relief preferences (including any specific wishes such as a water birth), preferences for monitoring, whether you wish to have a physiological or active third stage of labour, your wishes around skin-to-skin contact, and infant feeding intentions. Share your birth plan with your midwife for feedback. It is also worth discussing cord blood banking with your midwife if this is something you are considering, as arrangements need to be made in advance.
⚠️ When to see a doctor
- Vaginal bleeding of any amount
- Severe headache or vision changes
- Severe abdominal or lower back pain
- Swelling of face and hands (possible preeclampsia)
- Decreased or absent fetal movement after 20 weeks
- Blood pressure above 140/90
Sources
- WHO recommendations on antenatal care (2016)
- ACOG Practice Bulletins
- Williams Obstetrics, 26th Edition
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