Diabetes mellitus (DM) is a metabolic disorder characterized by glucose intolerance, which complicates about 18% of pregnancies. In 90% of cases, this condition is detected or begins during pregnancy, being classified as gestational diabetes (DG). In the remaining 10% of cases, DM already existed before pregnancy (pre-gestational diabetes mellitus (DMP) - type 1 diabetes mellitus (DM1) or type 2 diabetes mellit...