If there is blood glucose levels higher than normal in your blood, but not yet high enough to be diagnosed due to absence of active symptoms. but the hormone insulin which is used for sugar maintenance in blood is imbalanced because of blood sugar level fluctuations which may disturb the cycle of other sex hormones & can affect the fertility of both men and women to make it difficult to conceive.
So if you are not conceiving & there is family history of diabetes than go for diabetes risk assessment test at grass-diabetes.com by which users have to answer few questions like their weight, age, family history and other life style factors to know about the diabetes status and then consult the doctors about the report obtained.