Failed the 1 hour sugar test :(

Deb
Okay so I'm freaking out I went for the sugar test last week & I just got the phone call that I gotta do the 3 hour one, I'm scared out of my mind because I deff don't want to have diabetes, they said it didn't come back super high but it did come back a little high then normal, has anyone went through this please give me some good news :( 
29 weeks !