Back to work

Hi Everyone

I go back to work in 3 weeks - don't want to but not really got any choice.
Does anybody know how much BM I need to be trying to pump to keep the twins
going without supplementing with formula. I work nights so will be leaving
the house at 11.30pm and be back home around 9am, I plan to nurse as soon as
I get in but then need to try and get some sleep. I thought if I started
pumping now I could get some stored in the freezer but I've no idea how much
I should try pumping per day considering I'm still fully nursing (I will be
able to pump at work no problem). So ... anybody out there with twins who
can help, I'd appreciate your suggestions.

Thanks

Ellie

9wk DS & DD