good diabetic doctors near me Risk Factors Maternal Factors: Age over 25 years. Obesity or excessive weight gain during pregnancy. History of polycystic ovary syndrome (PCOS). Family History: A family history of type 2 diabetes. Pregnancy History: Previous gestational diabetes. Previously giving birth to a baby weighing more than 4 kg (9 lbs). Ethnic Background: Higher prevalence in people of Hispanic, African American, Asian, or Indigenous descent.