MGTT/BSP & Diabetis

Last Tuesday, i have done my 2nd MOGTT & the result was not so good. I'm suspected to have diabetis. Reading during fasting 5.1 & after 2H was 8.7. The nurse asked me to come again to the clinic to check my BSP. Yesterday I did it, 4 times they took my blood to test sugar. However, all the reading were okay, which mean it does not show i have diabetis. Thus, anyone have experienced likes this? How do you do to take good diet & sugar control for health & baby? I am so lucky to know now because previously i do not take serious my diet & eat drink whatever i want.