Firstly congratulations on your pregnancy!
I am type 1 but as you're on insulin I am guessing your treatment is similar.
Just a few questions. Do you carb count and know your insulin to carb ratio? Do you use an insulin correction factor? (So if you're above target, you take 1 unit of insulin to drop your bg level by x amount?) Just wanted to check as when you said you injected 10 units etc when your bg wouldn't come down, I wondered if you're using a correction factor or just injecting what you think should work.
Insulin requirements usually increase in pregnancy but I am not sure they would have already at 11 weeks. I think that happens in 2nd trimester but it's worth asking your dsn.
I wouldn't worry yourself with cutting out carbs etc during your pregnancy. Moderation is fine but carbs are also important for growing baby. I think what is more important is that you make sure to bolus with novorapid 30-45 mins before eating carbs unless you are hypo. That will help the post meal spike.
And I would ask your dsn for some help with checking your insulin carb ratio and your correction factor. Have you ever been on a dafne course? That could help too.
Any novorapid you inject continues to lower your blood glucose for around 4 hours. So that is something to bare in mind when you notice a post meal rise and want to give more insulin. Ask yourself how long it was since you injected. And resist the urge to give more if it has only been a couple of hours unless your dsn has advised you do.
I hope you can get further support from your dsn/specialist midwife. I empathise it is not easy being pregnant with diabetes. You are doing your best so try not to get stressed. I know that can be hard, but your blood sugars could be much much worse. You are doing a good job! Just keep testing
it will be worth it when your little one arrives. That's what I keep telling myself haha!