How To Conceive?

I am a type 1 diabetic and also I have PCOs. My husband and i are currently trying for our 2nd child. We have been trying for 9 months and i have only had 3 periods. I went to see my family dr and he refered me to a specialist who is booking into august! I have started taking vitex , my glucose levels are under control and i am exercising regularly with a healthier diet. We have also tried ovulation sticks but I have only got my period 4 times in the last 9 months. Please give me suggestions as to what else I can do to become pregnant asap. Thank you.