Final answer:
During pregnancy, patients with DM are likely to develop gestational diabetes, preeclampsia, and urinary tract infections, which are critical to manage for the health of mother and baby.
Step-by-step explanation:
Three conditions that patients with diabetes mellitus (DM) are likely to develop during pregnancy are b) Gestational diabetes, preeclampsia, and urinary tract infections. Gestational diabetes is a form of high blood sugar affecting pregnant women who have never had diabetes before. Preeclampsia is characterized by high blood pressure and signs of damage to another organ system, most often the liver and kidneys. Urinary tract infections are common due to changes in the urinary tract during pregnancy. It is essential to manage these conditions properly to ensure the health of both the mother and the baby.