Kathy, you can take a look at this link and work your way through the information including staging. The answer is likely to be that chemo is recommended. I know it is hard to take that in and I'm sorry for that.
After completing chemo, you likely will also be recommended to do Herceptin, also known as trastuzumab. A newer drug that you might want to consider instead is Tykerb, also known as lapatinib, but it is only available as part of a clinical trial.
http://www.nccn.org/patients/patient.../3_work-up.asp
-AlaskaAngel