Perhaps they want the chemo first to kill any cancer that may have strayed elsewhere due your lymph involvement. I know that once you have surgery they cannot give you chemo for a fews weeks because your scars have to heal and the chempo would delay healing. If they gave you the surgery and that delayed the chemo it might not be the best protocol. I am only sumising of course. I would ring the nurse. My nurse is fabulous and rings me everyday to see if I am OK or have any questions.
I am having surgery first but my cancer is tiny 3mm or the size of a peppercorn - then because mine is HER2 positive I have to have chemo.