I would definitely suggest renting a hospital grade pump IF YOU NEED ONE in the beginning.
I had similar issues with my first, nursed and pumped every 2 hrs for 3.5 weeks, had to start supplementing in the hospital, and ended up with no supply.
My second kiddo is now three weeks old, and nursing is going great! We haven't had to use a bottle yet! I just tried my double electric pump for the first time last night.
Please keep in mind that in order to establish a good supply, you need to nurse or pump every 2-3 hrs for the first six weeks, period. Even if your husband is giving a bottle, you need to pump. With that in mind, baby is much more efficient than the pump, so if you can avoid pumping for a few weeks, you have a much better chance of avoiding supply issues. Keep baby at the breast! Every time baby eats and is not eating straight from you, you are telling your body not to make that much milk.
With all that in mind, I would highly suggest talking to a lactation consultant, who will be able to put your mind at ease, and help you get the best start. I have had great luck with the LC's at the breastfeeding support center at Harris HEB hospital. You can call them and they are willing to talk you through anything. The number is ###-###-####. I would also suggest you spend a little time on www.kellymom.com There is a lot of great information.
Feel free to message me if you need a little nursing support. I understand it can be rough!