Congratulations on your pregnancy. It sounds like your hba1c won't be as high as it was. It's no good worrying now, you can only do your best.
Tbh, I'd ask for a bit of a review of your insulins. I never got on with lantus, I could never get it right. And if you're waking up at 10, then really the dose is right, but you're going to bed too high. Does that seem right? If you go to bed at 10 and wake around 10, then the dose of lantus is ok, but you might need to ake a tiny correction first. A lot of us found that lantus didn't last 24 hours, so would often go high before the next injection as it start to wear off. That was my biggest argument for trying levermir. I promise you it helped me a 1000%. Everything kind if fell into place and I was on lantus for over 5 years-worst control of my life.
I'm now on a pump. Best decision ever. If you are carb counting and with your pregnancy and hba1c, they'd throw one at you ;-). If you hate it, you can always go back.
Don't let the gp and diabetes team scare you. If they are any good at their job, they'll be looking at ways to support you. There are hundreds of stories of type 1 women having successful healthy pregnancies with high hb1cs.
Good luck, let us know how you get on.
And my bs went sky high the stage you're at. Just keep throwing insulin at it. Not the most medically correct solution, but personally, I'd much prefer to be chasing the hypostyle than highs at this stage x x x