Diabetes & pregnancy

Calla • Married Aug 2014. TTC since Jan 2015. Type 1 Diabetic. IUI in July 2016 got us pregnant with twins! 👶🏼👶🏼 Due 4/20/17
I am a type 1 diabetic and was diagnosed at age 9. My hubby and I are trying to have a baby sometime soon.
A1c is currently 6.9. Endo says it should be 6.5, OBGYN says under 6. Not sure who to believe! Hubby thought it would take us a while to get preggo anyhow, so I stopped BC.
Right now we're just learning more info & getting ourselves ready for what could happen. I'd just like some advice from other t1d's and how you deal/dealt with diabetes and pregnancy.