Hi
Congratulations on your pregnancy
If you're ok with a pump, I think you might find it useful during pregnancy. Your insulin will need a lot of adjusting and its so much easier to do that on a pump. My consultant said they usually offer one to women during pregnancy as they can get better control on one.
Don't panic about the highs. During pregnancy you just have to adjust to what's happening. Sometimes you'll have lots of lows and have to reduce your insulin, other times it'll need increasing, and increasing quite a lot towards the end of pregnancy.
When are you getting the highs? Have they on,y just started since you've become pregnant or have you had control problems before?
If you're confident doing correction doses, you could do that but, as always, err on the side of caution, and if in any doubt speak to a medical person.
I didn't adjust my basal that early in pregnancy because I was nervous, but I did do correction doses. I also tended to eat similar things each day just so I could get things under control in that early stage. When I became pregnant I phoned my hospital team straightaway and they got me an ante natal appointment really quickly. If you're concerned, you could try doing that and see what they say, or you could ask for an appointment with your GP sooner. i think the first option is what I'd do as some GPs don't know that much about diabetes in pregnancy and so may be unable to give that much help.