Need some help please

Adu • FTM to a beautiful boy and wife to the most handsome
Hi ladies, I just got my 3hr GTT results and fail with 203,168,117 I'm so sad right now cause I was really hoping I will pass the test. I really haven't gain a lot of weight right now at 28wks I have only gain 11Ibs. I am a first time mom so I'm scared and worried. 
 Any advice on how to deal with it? Any tips on maintaining good sugar levels?