Hi,
I've been type-1 for 21 years, and have 3 children aged 18, 14 and 8. I was only diagnosed 2 and a bit years when I became pregnant, and he was a big baby at 9lb 4oz, but the easiest delivery! Your pregnancy will be considered a "high risk" pregnancy, but don't panic about the term. What it means is that you will probably have an ultrasound scan every month to check baby's growth, and have more blood tests and monitoring than non-diabetic pregnant women.
You will have your baby in hospital, and will be monitored throughout the labour, attached to a fetal heart monitor. I was induced with my children at 37 + 38 weeks; they don't usually let mothers with type-1 go over 38 weeks due to the risk of stillbirth. 38 weeks is considered a full term pregnancy, so it's nothing to worry about;baby's lungs are mature at that stage.
I remember when I first got pregnant, presumed I would have to have cesaerians; that's how it used to be. I had 2 inductions, both 4 hour labours, and 1 elective cesaerian, but it really wasn't my choice, but due to my eldest son being ill, and me not feeling able to cope with labour at the time. It's not the easy option.
If you are on particular analogue insulins eg;Lantus, these are not tested safe in pregnancy, and you will probably have to change your insulin. I had to change from Novorapid to Humalog for that reason. You should probably talk to your doc about that prior to getting pregnant as your regime/doses might need a bit of getting used to.
Good news is I found my BGs were more stable during all my pregnancies than at any other time, until I recently changed to animal insulins. I had always had erratic control on synthetic insulins, but for some reasons, my diabetes was always easier to control in pregnancy.
Your insulin doses will increase during pregnancy, I ended up on double the dose by the end of each. That will reduce gradually after labour, and you'll need to check Bg loads, but I don't remember it being a huge problem.
Sounds like you've got your levels sorted ,and that's the main thing, BG swings in pregnancy are not good. I loved being pregnant, best times of my life, a wonderful experience, and it gets better when they're born, so enjoy!!
Best of luck
Jus