It is not uncommon for exercise to result in an increase in BG.
When we exercise, two diabetes related things happen: we become more efficient at using insulin and our liver releases a glut of glucose to give us the energy to exercise.
Typically (but not always, because we are all different), prolonged steady exercise such as running or walking or cycling will result in lower BG after exercise whereas stop start, resistance training such as weights, climbing and circuits will result in higher BG.
However, as our livers are releasing glucose and depleting their stores, over a longer time, both will result in lower BG.
I also notice you are exercising early morning.
The BG rise may also be related to Dawn Phenomenon - our livers see getting up as another reason to release glucose.