THURSDAY, Nov. 14 (HealthDay News) -- All pregnant women should be screened fordiabetes 
at their first prenatal check up, according to new recommendations from an international group of endocrinology experts.
The test should be done before women are 13 weeks pregnant or as soon as possible after that milestone is reached, according to new clinical practice guidelines released by the Endocrine Society to help doctors improve the level of care for pregnant women with diabetes.
Up to one in five women may develop gestational diabetes  -- a form of diabetes that begins during pregnancy. Traditional testing methods, however, only detect about 25 percent of these cases. As a result, the experts caution that many pregnant women with gestational diabetes are going undiagnosed, which could increase their risk of having an overly large baby and complications during delivery.
This might be something to talk to your doctor about at that initial visit!