I need advice ....I'm at a loss

So today I learned that I failed my glucose test..... not only did I fail the test but I learned that my glucose levels where at 380 after the test when they should have been at 100 to 130 ....I'm feeling like I failed at doing my job if taking care of my body and my baby

There wanting me to talk to a dietitian and talk about what I can change in my diet, but I eat really healthy ( mostly vegetarian or vegan food ) I dont have sweets or sugary drinks , every once and a while I'll have a dr pepper .....I feel defeated and at a loss

Has anyone else had this happen and can you give me any advice