What Is the Glucose Test in Pregnancy?
The glucose test (often an oral glucose tolerance test) is usually done between 24 and 28 weeks. It checks how your body handles sugar to screen for gestational diabetes. You may be tested earlier if you are at higher risk.
How it works
You drink a sugary solution and have your blood sugar measured after a set time (sometimes fasting first and again after). High readings suggest gestational diabetes.
Why it matters
Catching and managing gestational diabetes protects you and your baby. See our full gestational diabetes guide.
Frequently asked questions
When is the glucose test done?
Usually between 24 and 28 weeks; earlier if you are high-risk.
Do I need to fast?
It depends on the test type — your clinic will tell you whether to fast beforehand.
What if the test is positive?
Your doctor will guide you on diet, monitoring and, if needed, medication.
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