Not good

Depending on breakfast it could be time of month, feet on floor, dawn phenomenon, exercise as well as the drugs not being there. Watch what it does the rest of the day. The exercise might have a delayed beneficial effect later that lasts. A different part of your cycle in otherwise identical circumstances might be different.

In your shoes I’d watch carefully but not panic. You need the bigger picture not a single reading or even a single day and even a single week needs context.

Depending on the intensity of the exercise, morning workouts may very well cause a rise in glucose at a time when dawn phenomenon is already likely to be having an effect. If possible, you may benefit from exercising later in the day.

woollygal said:

I think DP has already happened and disappeared.

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You will always have a propensity for your sugars to go higher, or stay higher, in the earlier part of the day, since this is when cortisol levels are highest. Your liver is more likely to be secreting glucose during this time irrespective of food, especially if you consider hepatic insulin resistance as a factor. Exercise may very well result in even more glucose being released during a time in the day when you could do without it.

All theory, of course, but it would not a be a surprise if the workout was exacerbating matters for you.