Best of luck with your pregnancy.
It is very important for you to keep your sugar levels under good control. High sugars cross the placenta and the fetal pancreas responds by producing more insulin which causes the baby to gain weight. In the overweight baby this can lead to insulin resistance, high sugars and eventually diabetes.
Future development of diabetes in the child is also affected by the genetic contribution of the parents.
So, gestational diabetes is very complex when it comes to fetal growth and development. Bottomline, for your infant's good your sugars should be well controlled.
Marvin A. Leder, MD, FACP, FACE