I'm not sure her exact age, but for a real encouraging story go to dLife.com (DiaBetes Life--they also have a TV show). Look up Nicole Johnson, the former Miss America, diabetic and pumper.
I think her pregnancy is documented.
You can also look up her web site, which you can google for.
She is really one of my heros.
And I agree, you can do it, you just need a really solid medical team to support and help you with all phases.