Hi
@Charisma_1630
I've had my pump years now but when I first got it. I was lucky enough that my basal settings were estimated pretty well, so I didn't have much tweaking to do. That helped a lot. The rep from the pump company actually set mine, in consultation with my DSN, and his experience was obviously very helpful.
I find the biggest issue many new pump users seem to have is not having enough basal rates. My pump's hourly rates match my insulin needs really well, which is why I love it. For me, the trick was to throw away any expectations about 'normal' basal rates and go with what worked for me. That means some of my rates are absolutely tiny (early hours of night) but others are much bigger (to cover dawn phenomenon). So, in consultation with your team, don't be afraid to make changes or think you have to have the same amount of basal for X number of hours. You don't.
If you can get the basal sorted, you'll find things much easier. Meal ratios are simpler to sort, I think.
I can understand how much you want another baby, but getting your pump settings sorted is wise not just for the health reasons, but also to reduce your stress and allow you to enjoy your pregnancy. Also, you'll be making lots of adjustments anyway during pregnancy, so getting all this under your belt will stand you in good stead.
I agree with
@Sarahkylie88 that you can't put a timescale on how long it'll take to get things sorted. But if you put your mind to it, I'm sure it won't be as long as you fear
Edited to add that I e never used a CGM and wasn't offered one in pregnancy, but I did do lots and lots of blood tests. My lowest HbA1C in pregnancy was 27, but they ranged from 27 to 32 (I think - baby brain still!)