Gestational diabetes question

Hi ladies, for those of you who were able to control your sugars with a diet, were you able to go over on some days after a meal? Or is going over any of them a bad thing and will be put on medication?

I’ve been check my sugars for a week now and I have had 3 high readings. Twice after dinner and once after breakfast. All three times I went over I know exactly why. While having my meal I had a feeling I should not have been eating that 😓 all other meals I’ve been under and my fasting numbers are great. All under 90 so far. I have an appointment with my midwife on Tuesday so I will be asking her, but just wondering now lol

Thanks in advance!