The boobie respond best to babies. No matter how great the pump. The great thing is, your milk can ramp up or down in days based on supply and demand. And remember that wet-nurses of yesteryear were allowed to nurse up to SEVEN babies at once (so our bodies, as females, are quite amazing).
Ideally, your husband would bring you your child to work to breastfeed her at least once during your workday, then pump the other times. You also are going to need to pump every 2 to 3 hours, rather than every 4 (and whatever you do, don't miss a pumping session).
Here is what I would do:
Nurse her through the night and before you go to work (say your workday starts at 6 am).
Get to work, pump at 9, feed the baby at the breast at 12, pump again at 3 and then as soon as you get home at 6 / 6:30
You can also restock your frozen supply by pumping one side while she nurses on the other. In fact, to quickly ramp up your supply, I suggest starting to do this now.
Drink plenty of water and eat well (moms in our Cape Cod Breastfeeding Moms club like those Luna Bars). And, actually, while you try to restock your supply, can you get some milk from another mom? If you really need some, our moms in our group will absolutely get some to you (we are on FACEBOOK - Cape Cod Breastfeeding Moms).
You can also take a Fenugreek supplement which is a galactagouge (increases milk supply). If you like tea, you can get it that way as well, though I prefer the pill.
Lastly, do NOT go with formula. Their are some dangerous chemicals in infant formula and we are just now starting to hear about them in the news:
http://www.cnn.com/2007/HEALTH/12/04/bpa.formula/
http://abcnews.go.com/Health/story?id=7242880&page=1
http://www.teachspace.org/personal/research/nestle/histor...
http://www.consumeraffairs.com/news04/2008/12/chinese_for...
http://www.nutraingredients.com/Research/Infant-formula-l...
And, if you really like to read, this study by the American Academy of Pediatrics basically concludes after a massive study, that formula fed babies are 27% MORE LIKELY TO DIE than breastfed babies.
None of the links above are hype or crazy, hard-core breastfeeding advocates. Just simple, un-contested FACT (and they are scary).
We can get you breastmilk from our moms and we can help you succeed. Feel free to find us on FACEBOOK or at http://www.mymammasmilk.com
Peace-Love-Boobies!
Very cool documentary coming out soon as well: http://www.formulafedamerica.com/