Diabetes in pregnancy, including pre-existing Type 1 or Type 2 diabetes and gestational diabetes, poses significant risks for both mother and fetus. Poor glycemic control can lead to complications such as preeclampsia, preterm delivery, macrosomia, neonatal hypoglycemia, and long-term metabolic risks for the child. Effective management involves early screening, close monitoring of blood glucose levels, individualized nutrition plans, and pharmacological therapy when required. Multidisciplinary care, including obstetricians, endocrinologists, dietitians, and diabetes educators, is essential to optimize maternal and fetal outcomes. Timely intervention and education empower expectant mothers to achieve optimal glycemic control, reduce complications, and support healthy pregnancy outcomes for both mother and child.