Testing for GD after two previous pregnancies with it.

Raven

Does anyone know how early they do the glucose screening when you've had Gestational Diabetes previously? With my first two I couldn't get in to see an OB until 18-20 weeks because of insurance issues so I've always done it either at 24weeks or closer to 30 weeks. But this time I'll be seeing my high risk OB from 8 weeks on.