Understanding the Glucose Tolerance Test (GTT) During Pregnancy
Pregnancy comes with a lot of tests and check-ups, and for some parents, the Glucose Tolerance Test (GTT) can feel confusing or intimidating. If you’re preparing for this test, it helps to know what it is, why it’s done, and how to feel prepared and empowered.
At New Birth Club, we support parents in Weston-super-Mare, Bristol, and Somerset with evidence-based information, reassurance, and personalised guidance to navigate pregnancy confidently.
🤰 What Is the GTT?
The Glucose Tolerance Test (GTT) is a test to check for gestational diabetes, a type of diabetes that can develop during pregnancy. Gestational diabetes affects how your body processes sugar and can impact both you and your baby if left unmanaged.
Typically, the test is offered around 24–28 weeks of pregnancy, though it may be done earlier if you have specific risk factors.
🌟 What to Expect During the GTT
Fasting Blood Test
You may be asked to fast overnight. A blood sample is taken first to check your baseline glucose level.Drinking the Glucose Solution
You’ll drink a sweet liquid containing glucose. Yes — it’s quite sweet!Waiting & Second Blood Test
After 2 hours, another blood sample is taken to see how your body processes the sugar.
The test typically takes around 2–3 hours, so plan a comfy spot, a good book, or some music to help pass the time.
⚡ Tips for Managing Anxiety Around the GTT
For many parents, the GTT can cause anxiety or nausea. Here’s how to prepare:
Stay hydrated – water before the test helps your body process sugar better.
Bring snacks for after – you’ll need something to balance your blood sugar once the test is over.
Practice relaxation – deep breathing, guided meditation, or hypnobirthing techniques can reduce stress.
Ask questions – understanding why the test is done and how results are used can ease worry.
“I was nervous about my GTT, but knowing what to expect and having support made all the difference. I felt in control and prepared.”
👩⚕️ Why the GTT Matters
Gestational diabetes diagnosis can increase the risk of:
Induction of labour
Complications during birth
Understanding how to navigate the system safely is key for reducing complications.
📅 Support for Your Pregnancy Journey
Whether you’re nervous about tests like the GTT, preparing for your second birth, or navigating high-risk pregnancy, New Birth Club offers trauma-informed support and personalised guidance to help you feel calm, informed, and empowered.
👉 Book a prenatal session or birth preparation class in Weston-super-Mare, Bristol, or Somerset and take the stress out of pregnancy and birth planning.
📩 Visit New Birth Club to secure your session — feel confident, supported, and in control throughout your pregnancy.