Hello Wannabump and welcome!
It's okay to be a bit worried -I'm 34.5 weeks now and being a natural optomist somehow thought I was going to enjoy pregnancy; the vomitting and tiredness and just generally uncomfortableness came as an unpleasant surprise, let alone complete insult to my body image and the chaotic blood sugars. And it means that afterwards your life will never be the same again- who in their right mind wouldn't be a bit scared when starting out on this?
BUT.... despite being worse than I thought, it's also better than I thought: babies are more forgiving of slightly high blood sugars than my paranoia would have had me believe. It SEEMS as though I'm too high a lot of the time and I'm always panicking about it, but while i panic away on the outside, the baby's growing normally and getting on just fine.
A good diabetic support team makes all the difference. If you aren't getting the support you need from your doctor, ask if there is a support system at your local hospital. When I was first thinking about it, a consultant sat me down and explained a lot of facts and statistics that made me feel more confident. A lovely nurse calls me up every fortnight or so to help with my levels; I've had regular scans throughout and much more contact with my obstetric team than a non-diabetic pregnant woman would get.
So if you take away three bits of advice from this thread (given by others already), 1) it;s ok to be worried 2) get good advice from the professionals (if it's not offered, ask for it until it is, esp regarding e.g. folic acid, regular ha1bc checks) and 3) stay in touch with us all! - having this space to talk and read makes it so much easier.
BTW 3 months is no time at all, don't worry about that side of things.... the less you worry, I think the more easily it happens