I would definatly recommend pumping more than just once at work... I had the worst time pumping, I never let down super to the pump and I never got more than 4oz of each breast pumping and throughout the night that would dwindle down. It can be done though! As hard as it was for me to let down to the pump, I didn't supplement until 5.5 months! I was very proud!

What you may need is lots of nipple cream and some breast pads. I used the washable ones because I liked them better. Also I would get a good water bottle and keep it with you at all times because you should drink lots of water. Also maybe a good book about breastfeeding that you can read while pumping and while the baby is nursing. Lots of little snacks are good to because you burn more calories when breastfeeding. Some good snacks to get are things with oatmeal like granola bars or cookies because oatmeal increases your supply. A good pump the Medela is a great one and if you cant afford a good one there are a few tips to getting one cheaper.
1) check with your insurance because some of them cover pumps if they are needed and your doctor can actually write you a prescription for one so that it would be much cheaper.
2) a way to rent one cheaper I would check with your local WIC office because if you qualify some WIC offices rent them out real cheap. My sister only paid 25 dollars and she can keep it as long as she needs it and then once she returns it she will get her 25 dollars back. But some WIC offices have different prices and policy’s so I would check.

I don’t know much about pumping but I do know that the amount you able to pump is often times way less then what the baby can get out while at the breast so don’t let the amount you pump be in indicator that the baby is not getting enough milk. You will pump enough it just sometimes take a bit of time to get your supply up to the baby’s demand with the pump because it’s not as efficient as the baby’s mouth. But it will get easier before you know it and all the trouble will be worth it.
If it’s possible you may need to pump ever 2-4 hours in the beginning to keep your supply up but once your able to pump more at each sitting you can do it just once while at work and then maybe once before and once after work, and pump during the night when baby is asleep to keep up your storage supply. And when ever your home with the baby I would let him nurse also to keep your supply going even stronger. And try not to supplement to much because the more the baby gets from supplements the less milk your body will need to make and your supply will go down.

There is so much to learn and most of it you will learn through experience so just keep at it and if you need any advice or support you can come here or find answers in a good book or online.
Also you can hook up with your local LLL they are a not-for profit program that supports breastfeeding. They have a website so that you can find a loca group in your area and they have a 24 hour hotline. The website for the usa is