GD end of pregnancy

This is my second pregnancy with GD and I’m almost 37 weeks and mg numbers keep randomly dropping low. I told my ob and he said it could be due to the placenta failing and keep track of movements. I went to my endo and I ended up having low blood sugar in their office and she said it’s hard this late in pregnancy to manage. Since then I woke up and my blood sugar was 83 immediately after waking. I thought I was good until I got my two year old out of bed and I got nauseated and dizzy. Just that movement made my blood sugar drop from 83 to 69. I ate a bowl of captain crunch with no insulin and an hour later I’m only at 110. Which is so abnormal because usually it’d spike me. I have an NST scheduled for Monday morning but I’m not sure if I should call and share the random lows with my doctor or just wait until Monday.