Hi Mary, sometimes things can move quickly, I had my biopsy done the first week in Dec and surgery mid-month the year I was diagnosed. I was very comfortable with my decisions, as I having met with and discussed things with the mammo radiologist, and then the one that did the ultrasound. The biopsy results were thoroughly explained by the surgeon, and she went over all the surgical options, and repeatedly said I could take a couple of weeks to process all the info and make my decision. I had already determined what I wanted, so I just went ahead and scheduled.

You, however, do not feel like you are making decisions with full information.
My suggestions would be:
1) If you have an online patient portal, start there and read everything about your situation. Make a list of questions.
2) Did they assign a nurse navigator to your case, if so, call them and see when they would have time to answer those questions about your pathology reports etc.
3) Did the surgeon explain why the mastectomy? Did they offer you options regarding reconstruction?

Call the surgeon's office, and let them know you are hesitant about going forward with so many questions about your type of cancer, the reason why the mastectomy is recommended over the lumpectomy (the official term is "Partial Mastectomy"), and see if you can get in before the surgery date to get the questions answered.

Bottom line, you need to be comfortable with your team and the path forward. It is ok to hit the pause button, postpone the surgery, and get a second opinion.

Gente hugs!