The document discusses diabetes mellitus and its influence on pregnancy. It defines diabetes as a chronic disease resulting from insufficient insulin production. During pregnancy, diabetes can increase risks for both mother and fetus, such as abortion, preeclampsia, growth restriction, and neonatal complications. Gestational diabetes develops during pregnancy and usually resolves after delivery but increases later diabetes risk. The document outlines nursing interventions for gestational diabetes including glucose monitoring, dietary changes, exercise, education, and insulin administration if needed.