GD and so confused

Kristin • I`m 36. Have been married 7 years. We have been trying to conceive # 2 since October 2018.
So I failed my 3 hour test and am now having to monitor my blood sugar levels 4 times a day. I've been anywhere from 80 to 108. Are t those good numbers? Has anyone failed the test and later been told it's not GD? Just curious. FTM.