So you are Hormone Positive ( ER/PR) HER 2negative. I was also and had 2 tumors ( undetected by mammo and ultrasound 3 mos before my diagnosis!) thought yo be 1-2 cm but were 3 and 4cm.

BE AWARE: do not take any anti hormone medication known as AI’s which are aromatase inhibitors ( which will likely be recommended for you ) until you get the tumors typed by ONCOTYPE. It has come up that the taking of AI’s before biopsy or surgical samples can eliminate the chance of having an ONCOTYPE test performed on the tissue. The ONCOTYPE is THE diagnostic tool to determine whether chemo is needed. In my case, it was not.

Age and pre/post menopause has a lot to do with the chemo calculation. Generally a Score of 25 and up to 100 suggests chemo for post meno. . Score of 18 and up for pre-meno. There are unique variations.

I am 71 and athlete body type (had a few extra pounds ) and menopausal for 20 years but somehow my estrogen production capabilities never got the memo!