gdm mummies how will it affect baby

hi there! i have gdm, i'm 38 weeks now so far my blood sugar is okay not that bad. only certain time like fasting and bedtime it will spike up but never reach more than 7.2mmol before. i'm not on insulin or any sorts of medication. just diet control. i was thinking, my baby hasnt grown too big so what will happen to baby if in cases on my labour day my blood sugar suddenly spike? i dowan anything to.happen to my baby tho 🥺 i'll be doing a membrane sweep today, then 5 days later doc will induce if no signs of labour. i'm just feeling very worried for my newborn.