Just a quick update. We're doing much better at the BF front. My supply has started to kick in and we've gone 2 days without need for EBM at all and she's still producing good amount of wet nappies (too many according to DH, he's shocked at how many nappies she goes through). I've managed to stop expressing except for once daily so I can build up a little store of EBM in the freezer. I found one big thing that really made a difference to my milk supply is sleep. After every nap my breasts would feel so much fuller so they must be doing some production while I'm sleeping. She's still wanting to feed every 2-3 hours but at least she latching on well now. Much happier bub = much happier mum.
Thank you again for all the advice and support. Really means a lot to me.