The goal of this study is to compare two different thresholds for initiation of medical
treatment for GDM. Pregnant women diagnosed with GDM will be randomized to either start
pharmacotherapy when they have reached at least 20% or at least 40% of capillary blood
glucose (CBG) values above the target goal. The investigators hypothesize that a lower
threshold of 20% elevated CBG levels, compared to 40%, will lead to lower rates of obstetric
and medical complications.