HRT and ER-, PR-, Her2+ BC

[VDC]

So, does anyone know what the current research says about HRT (Hormone replacement therapy) as it relates to ER-, PR- disease? I was dumbfounded when my oncologist didn't recommend I discontinue HRT with the diagnosis of DCIS. Anyone have any current research to support either discontinuing or continuing HRT? Seems from what I know that discontinuing HRT would be the first thing to do! But with ER- PR- disease I'm told HRT has no effect. I'm deeply questioning the wisdom of continuing. Anyone have any ideas?
Thanks