I have to go back to the docs in the morning at 8 for that glucose test thing. I took the drink test last week and it…

I have to go back to the docs in the morning at 8 for that glucose test thing. I took the drink test last week and it was abnormal so I guess I have to go for some more test that supposed to take hours. My question is I forgot how long I'm supposed to fast before I come in.. I want to say 12 hours???? I'm starving and my baby swimming around looking for food..I just wanna eat cereal is it OK 😭😭? does anybody remember how long your supposed to fast for??