Okay so I had gestational diabetes with my son in 2016. my one hour level was 167. I did the diet and managed it that way. Now I'm 9 weeks pregnant and I already failed the one hour test. 175. So I take the 3 hour Monday which I'm absolutely dreading because of how crappy it made me feel last time. If I fail it does that mean the diabetes is pre existing? Gestational is caused my the hormones from the placenta but I am only 9 weeks now. The placenta hasn't taken over yet if I'm not mistaken. I am quite afraid.

EDIT: I never took the test after my son, I never got a lab request for it. I'm just guessing at this point Im diabetic. Also for anyone else whos struggling with this. I'm 28. 5 ft 4 and 138 lbs. my bmi is 23. The only risk factor I have is it runs in my dad's family. that's it