Can you pump once she goes down for the night instead? That was she may 'fill up' a bit more when she cluster feeds before bed? That way you'll have a bit of milk for the day time for her and you won't lose any time with her when you're home after work? I used a pump that you can 'strap on' and walk around with and I must say it was a life saver. Looked a bit funny with it on so I wouldn't answer the door wearing it, but it saves a lot of time and eases restrictions!