Final answer:
The most challenging times for managing diabetes in pregnancy are during periods of high stress and the third trimester, due to increased glucose demand leading to potential ketoacidosis. It's essential to monitor blood glucose levels closely and have a strong support system.
Step-by-step explanation:
The two most difficult times for control in the pregnant diabetic are during periods of high stress and the third trimester of pregnancy. High stress can elevate blood glucose levels and complicate diabetes management. In the third trimester, there's an increased demand for glucose which can lead to overproduction of ketone bodies and ketoacidosis, posing significant challenges.
Managing blood glucose levels efficiently during these times is critical. This might include employing strategies for stress control, such as breathing exercises or physical activities, and ensuring rigorous monitoring and management of blood sugar levels. Enlisting support from healthcare providers and loved ones can also help in maintaining optimal control over diabetes during pregnancy.