trying to get my dr to give me herceptin

I am 32 yo dx Stage 1 last year. I had mast with 4 cycles of Taxotere and Cyttoxan,... I was Her 2+ and want my dr to give me Herceptin.. She says no its only given in the metastatic setting. I want the drug now and not wait for a recurrence. Has anyone dealt with something like this? Any INFO would help me please. I have 3 young sons I want to be here to raise. Thanks BUFFY