gestational diabetes.. help?

Holly

so I failed my 1 hour glucose test, have to go for the 3 hour next week.. if I fail that.. what does that mean? what exactly is going to change does anyone know / have experience. do I have to take insulin... etc? I'm worried. I know lot of people fail the one hour and pass the 3 but in just worried overall. I know it can pose a risk for the baby. any insight would be great..