What's happening with your baby at 26 weeks
At 26 weeks, your baby typically measures around 35 cm from head to heel and weighs somewhere between 700 and 900 grams — roughly the length and heft of a large scallion. Growth rates vary, so your own scan measurements may run a bit ahead or behind this.
Baby's eyelids, which have been fused shut since early in the second trimester, are beginning to open. Eyes can now open and close, and baby may start responding to light that filters through your belly.
The lungs are maturing quickly, producing more surfactant — the substance that keeps tiny air sacs from collapsing — and baby is practicing regular breathing motions using amniotic fluid. Hearing is sharp enough now that loud noises can trigger a startle or a kick.
What does 26 weeks pregnant feel like?
Many people notice Braxton Hicks contractions this week — a tightening across the belly that comes and goes without a regular pattern. These practice contractions are normal, but regular, painful, or increasingly frequent tightening is worth mentioning to your provider.
Shortness of breath is common as your growing uterus pushes up against your diaphragm. Backaches, mild swelling in the feet and ankles, and trouble getting comfortable at night also tend to show up around now.
Some people notice restless legs, heartburn, or occasional dizziness when standing up quickly. All of these are common at 26 weeks, but if any symptom feels severe or unusual for you, it's always reasonable to check in with your provider.
What is the glucose screening test at 26 weeks?
The glucose challenge test screens for gestational diabetes and is usually done sometime between 24 and 28 weeks. You'll drink a sugary solution, then have your blood drawn an hour later to see how your body processes it — no fasting is required beforehand.
Most people's results come back in the normal range. If your level is higher than expected, you'll typically be asked to come back for a longer, three-hour follow-up test that gives a clearer answer.
A high screening result doesn't mean you have gestational diabetes — it means more information is needed. Your provider can walk you through what a diagnosis would mean and how it's managed.
What to do this week
If you haven't had your glucose screening test yet, this is a typical week to schedule or complete it. Ask your provider what to expect and whether any preparation is needed beforehand.
If your blood type is Rh-negative, your provider will likely talk to you soon about a RhoGAM shot, usually given around 28 weeks. It's worth asking now so you know what's coming.
Start paying attention to baby's movement patterns so you know what's typical for your baby. There's no single "right" number of movements, but getting familiar with the pattern now makes changes easier to notice later.
When to call your provider
Call the same day for regular contractions before 37 weeks, pelvic pressure that feels new or increasing, low back pain that comes in waves, or any fluid leaking from the vagina — these can be signs of preterm labor.
Also call for a noticeable drop in baby's movement, vaginal bleeding, a severe or persistent headache, sudden vision changes, or swelling that appears suddenly in your face or hands. These can be signs of preeclampsia and shouldn't wait until your next appointment.