OK so I had to give in and buy some formula last night coz I was sat for half an hour expressing and only got 2oz and had to top it up to 5oz with my other boob! I'm still going to express as well as give her formula but I'm definitely running out of milk this morning I got 5oz in 25 mins on my left side and then only 3oz on my right in the same amount of time!! doesn't make sense :(