Mirena and Breastfeeding

I had my mirena placed at my 6 week pp appointment a few days ago and have noticed a significant drop in my milk supply since then. I am ebf and this is extremely stressful in that this is the only way my child is fed. I pump to releave myself usually 3 times a day and get 5 oz. total. Since the mirena I barely get  2 oz!  My left breast has always produced more milk but now barely pumps half an ounce. I am so confused on what to do to fix this since mirena wasn't suppose to affect my milk supply and nothing else has changed in my lifestyle or diet but the mirena. Breastfeeding my child is so important to me and the last thing I want to do is supplement. Have any of you other ebf mamas experienced this with mirena? I was on the mini pill for a month before I got mirena with no problems with milk supply so it's not like my body hadn't gotten the horemones before and wasn't used to it. I guess I'm just looking for opinions on what to do and if mirena has done this to any other ebf moms?