The bleeding that occurs while you take the inactive pills isn't the same as a regular period. Nor is the bleeding necessary for health. This is good news if you take birth control pills and want more control over your menstrual cycle, either for personal or medical reasons.
To prepare for the glucose tolerance diagnostic test: 1  Eat a balanced diet that contains at least 150 grams (g) of carbohydrate per day for 3 days before the test. Fruits, breads, cereals, grains, rice, crackers, and starchy vegetables such as potatoes, beans, and corn are good sources of carbohydrate.
The glucose tolerance test is usually done between 24 â 28 weeks gestation. risk factors for gestational diabetes, the test may be done earlier in pregnancy. pregnancy. Please eat normally during the day of your test. glucose solution to drink when you arrive for your appointment. beverage within five minutes.