Anu, I'm not a type 1 but I do know something about genetic diseases. My oldest son, notice I said oldest son, has a genetic eye disease which is causing him to lose his sight. At the time he was born we did not know that his grandfather's eye disease was genetic. Nor did we know at the time my youngest son was conceived. Had we known we would not have a second child. But the youngest was lucky, even though he had a 50-50 chance of inheriting this disease he did not.
Now to my point. Had we known before my youngest son was conceived I would not have my youngest son. Had we know before our first son was conceived I would have no children at all. If I could go back 30 something years I would still make the same decisions even if I had known. I cannot even imagine what it would have been like to not have had my sons to raise to manhood. I have 2 son that I will do anything for. Just think I might have made a terrible mistake 30 something years ago.