So long as your OB-GYN is aware of these things, you should be okay. Talk to him/her and put your mind at ease. Take care.
During pregnancy your blood sugar needs to be very well controlled. This is critical for a helathy baby.
Also the thyroid levels must be closely monitored and adjusted.
If both are managed you can have a normal healthy preganncy. I have both and had a healthy full term daughter 2 years ago. Trying now for second baby, with same condition.