Exercise and milk supply

I’m 6 weeks PP and got cleated to begin exercising again! I’m definitely looking forward to getting myself into better shape since I gained 40 pounds during pregnancy (the majority of which went to my belly and breasts). Will mostly be doing some spinning and yoga.

Did any of you who began exercising notice a difference in your milk supply? I am EBF, and would like to continue to do so for as long as possible. Any tips for maintaining supply while exercising?