When my son was about that same age, I tried to pump and had the same thing with hours of pumping and only got a tiny drop. I realized that the
breast has to get used to the
pumping action and after several tries, you will get more to come out. I would try that before buying a more expensive pump. Keep trying to feed her! Also, do not use the amount that you get from pumping as an indicator of how much milk you have. You will never get as much milk out with pumping as she will with sucking.