I think reading alot about it does make it worse, I found talking direct to the Oncologist with questions I had would settle me very quickly. Those with Her2 have Herceptin after Chemo, I have friends that had it, it's not like Chemo though. Lots of ladies on here have had it. I'd wait til friday, as pathology is the best way to know whats what moving forward, otherwise you drive yourself mad trying to be ahead of the whatifs. I've been where you are and its hard! but once things become clear and you start your direction you actually settle, it's the not knowing makes it worse. I do know though, you will absolutely be ok. Hang in there, let us know how you go Friday. Hugs Melinda xo