Hi and congratulations on your pregnancy
I had my daughter nearly 19 years ago and I remember having some highs, but mainly lows with minimum insulin. Different trimester's affect our bodies in pregnancy, what type of diabetes do you have as It's not visible on your avatar ?
Good luck at the doctor's today, he may say to increase your insulin by another couple of units. Take care
Edited, I see you have Type 1 in the thread title, oopps