Its long but please stay with me!

Okay moms I have a question. I have been working out for about 2 weeks doing cardio for 20-30 minutes a day. I started noticing my pumping output went down to where I was hardly getting anything but maybe 1oz out of my left and .5oz from my right (my right is my slacker). I stopped working out Friday and my pumping output is still low. During all of this my 6 month old has been content, eating every 2-3 hrs, still having her average 5 wet diapers or more. I hear her "gulp" with the let down during her feeds. I'm stressing myself out about my pumping output but my daughter seems content.

I want to be able to workout still because it's the one thing that makes me feel good. Please share your thoughts / experiences.