Right now I’m sort of seeing the man I hope to marry and the other day we brought up the subject of babies. We discussing that there may be a high risk if we had children that one of our babies would have diabetes. Diabetes runs in my family and I believe it runs in his. He is a diabetic and I’m not. We figure we are in a very high risk category, but since at this time we’re not married or planning to have kids yet we haven’t asked a doctor. We would both like your opinions and answers.

Like the question states, what type of diabetes happens during pregnancy.
More importantly, why does the head of most babies are usually abnormally large after such a pregnancy?
I am more looking for an answer on why there heads are usually large after such a pregnancy.

It is a question my teacher has been asking and he wants to know why.

In other words, is it likely to have prediabetes or diabetes if nobody in your family has it?
While I’m at it, is prediabetes/diabetes common in teenagers?