Glucose tolerance test 1hour in pregnancy

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Hi all

Today I had 1 hour glucose tolerance test, currently I’m 25 weeks 4 days pregnant! I never had sugar issues , always in normal range but today it’s far high 216 and range was 135 cutoff!! I’m extremely worried if I’m prone towards gestational diabetes?

I had breakfast at 8:30 and at 9 I had sugary drink is it make levels high?

What changes I can make in diet? What if I’ll have GD and it effects on my baby? Google is making me crazy 😒

Please help 🙏