I was able to successfully have my first at 39 1/2 yrs and having T1 since I was 12. My doctors informed me that there were some extra risks, but I think it was more because of my age than due to the diabetes. If your in control of your diabetes when you conceive and remain committed to doing that for the 9 months, I think you will do fine! My daughter is going on 6 months old now and I am sooooo glad that I decided to try to have a child. Best of luck to you!!!!