This study includes a behavioral educational intervention that focuses on healthy eating, physical activity and glucose management during pregnancy and post partum among women newly diagnosed with gestational diabetes mellitus (GDM).

This is a pilot trial in which 50 women newly diagnosed with gestational diabetes are randomized to either one of two groups: 1) active internet intervention or 2)Usual Care (Self-directed) educational intervention. The primary pregnancy outcome is change in A1C. The primary postpartum outcome is weight.

Inclusion Criteria:

• Diagnosed with gestational diabetes Confirmed singleton pregnancy 24-32 weeks gestation age Planning to deliver within the study area

Exclusion Criteria:

• Pre-existing diabetes (type 1 or 2) Non-english speaking Not planning to deliver in the study area