Welcome aboard, Rachel.
I'm not trying to concieve, but I have been pregant. There are a few mums with small children who post here. I had gestational diabetes in my second pregancy, and diagnosed as T2 12 years later, and I gave birth to a rather large baby, at 8 1/2 pounds, a month early. My midwife said that he'd probbaly have been arounf 11 lbs if he'd stayed for the full 40 weeks
As far as getting pregnant, there are things you can do that will increase your chances of conception. Getting your diabetes under good control will minimise the risks for you and you baby when you do get pregant. Low carbing is a great way of doing both these things, as well as fueling you body with some good quailty nutrition. Starting a pregancy in good health starts waaaaaaaaaaaaay before conception and involves both you and your husband - he needs to make sure his swimmers are in good condition too.
Tell us a bit about yourself and your diet and I'm sure we can help you to get your numbers down.
Also, how well do you know your body and monthly cycle? If you know how your body works and how to tell when you are most fertile you can maxinise you chances of conception.