Defo contact your endo asap, to get the right tools to manage your bg during those coming months (would absolutely consider pump and cgm). There are some cool blogs out there of mothers and mothers to be, here are a few:
http://sixuntilme.com (currently pregnant, and she is one of my favorite diabetes bloggers overall)
https://www.below-seven.com/pregnancy-and-type-1-diabetes/ (currently pregnant as well, she even did a month to month guide to pregnancy with T1)
Texting My Pancreas: Pregnancy (gave birth to her 2nd child this spring)
https://diabetessisters.org/blog/i-almost-let-diabetes-fear-stop-me-pursuing-pregnancy (this one is to ease your mind when you get scared, really beautifully written)
I wish you all the best with this pregnancy and keep us posted!