I've been expressing properly since about the second week. I didn't really realise how important it was to do it a lot when I began, and just relied on formula and lots of latching attempts that all failed. Now it's the domperidone and I can manage about 6 pumps a day, but they're all for half an hour because my let down is slow and I don't like to stop when there's a jet (which there is now, half an hour in - I'm pumping as I'm typing).
The first pump of the day is 80-110mls - how many ounces is that? 2 ounces is 50mls, so up to 4 oz? Then the next few are about 60, 40, 30, 30, maybe a last gasp of 10-20 at the end of the day, sometimes more. This is nothing like as much as the baby wants. I've tried pumping in the middle of the night, but the baby takes so long to settle after her middle of the night feed that after about an hour of feeding and holding her, if I then start to pump, and she still won't settle and starts crying and my husband has to go to work at 7.30 the next morning, I feel really bad. Her cot is with him and I'd pump in a different room. So I don't know - I don't seem to be able to increase the supply at all, really, drink a lot, massage, warm baths, fennel tea, drugs, staring at the baby, holding the baby, it's just not working.
Pumping is usually 3 hours a day, plus all the bottle washing, because she has 2 bottles at every feed - me + formula. I come back to England in the spring and will have to give the pumper back to the hospital, so I guess I'll give up at about 4 months. I would like to carry on, though. I'm going to hope my one-handed hand pump will see me through when I give back the industrial one.