sooooooo I had my 4 week checkup today and I did my flu vaccine, I heard the baby's heartbeat and…

sooooooo I had my 4 week checkup today and I did my flu vaccine, I heard the baby's heartbeat and all. anyways the Dr was like this will be your last blood drawing until the day of delivery. so I was like ok. it ended up being me glucose test. so I went to lab Corp and waited to be called . she said have you eaten today or had anything I said no, so she was like ok , next thing is that you will be here for 1 hour, I was like sooooooo hungry that I told her I'll come back tomorrow when I'm more prepared lmao. I DON'T PLAY WITH MY FOOD😂😂 . and how is the glucose test ? what should I expect?