No, you're not neurotic or crazy, it's an important time in your life so you're bound to be worried!
It might be worth re-reading the 'Advice to Newly-diagnosed Diabetics' in the 'Greetings' forum to get advice about testing. Basically, until you know how foods affect you, it's: test on waking (fasting); pre-meal; 2 hours post-meal; bedtime.
The target range (recommended by NICE) for Type 2s is:
4 - 7 mmol/l fasting/before meals;
less than 8.5 mmol/l 2 hours after eating.
Don't stop taking any meds before you've talked everything through with your doctor; the metformin might be doing more than you think.
I've never been a pregnant diabetic, but from some posts on here it seems that this is a time that you need to be in tight control of your bg. In your place I'd ask your doctor for test strips on prescription, using that as the main reason. You need to know what's going on
I hope all goes well for you!
Viv