Triple Neg HER2 what questions

Sorry ladies for the late response. I have been in hospital on IV to clear up infection from my partial 3 weeks ago in preparation for my mastectomy this Tues. Yes HER2 triple negative is what my Dr has said. I see a breast clinic in my state but not a one on one breast care nurse. I wonder if that may happen once therapy starts. The nurse at the clinic has organised a my journey kit plus the cartoon book for my oldest daughter. I have also received this week a Berli (?) Bra and padded form. I am at the clinic tomorrow morning to have my u/arm drained as it is filling up with lymph fluid. Should I be asking to see the path report. Does HER2 not go with triple neg, is this even more unusual.