Pumping

E

I EBF my 9 week old but I’ve been pumping to relieve some engorgement and to get a milk stash if I’m unable to continue BF (bf didn’t work with my first so I guess I’m paranoid). I was getting 4 oz after ten minutes but now all of a sudden I’m maybe getting 2 oz, if that. Am I doing something wrong? What’s going on?