Congratulations.......
I think you just need to respond to what your meter and Libre are telling you......
if you're doses now aren't doing the job you need to adjust your doses upwards.....if you're spiking after meals, fiddle about with the timing of your dose.....
testing/scanning much more will hep a lot........I would be looking keep the carbs down too but I couldn't say if that good advice to a pregnant woman.....
Obviously you should get your diabetes team on board as they may be able to offer additional help/technology...
You need to be scoffing down folic acid too I believe.....