Can anyone advise on maintaining my milk supply. I had plenty of milk at first it 'came in' during pregnancy but having recently started to wean I'm finding that my supply is not enough and I have to top her up with formula on her last feed at teatime. She sleeps straight through from 7pm till 8am and has a long feed first thing in the morning (both sides) which take most of the milk and i dont seem to be replacing it during the day only at night. Should I express last thing at night to try to increase it? Please help i dont want to stop feeding her yet.