Hit a resistance wall at 20 weeks

[Deb_z123]

Hi all, first time pregnancy, up until about 19 weeks i was taking double amount of fast acting insulin with meals and getting good sugars but having to catch hypos in between. Hba1c =36.
I feel i have hit a wall now at 20 weeks and need to take way more insulin- 60units for 60g carb to get 1 hour after eating levels within range.
I haven’t increased my long acting much- 8units.
Anyone had a similar experience? or any tips?

Thanks!