Hi @Scaredycat Welcome to the forum but so sorry you have to be here. I was TNBC and right from the beginning I was told chemo was a no brainer ( I'm sure someone will jump in presently with some advice ) I know treatment is so individualised now and it might be a good question to ask your breast care nurse or surgeon. Ask as many questions you need to to get a full understanding of your situation. ( no question is too silly ) and definitely take some one with you as a support system as our brain or at least mine was on overload with so much information at the time. Also I thought the international guidelines for margins was 2 mm. My initial surgery had a margin of 1 mm on one side only and even though my surgeon was okay with this he got out voted at the team meeting and I had to go in for a re excision to go over the 2 mm. As it turned out they found high grade DCIS so I ended up with Mastectomy. But you might just want to clarify that as well.
The waiting just sucks but try to keep yourself occupied. ( Yep I know easier said than done ) Hope you are recovering well and getting pampered rotten. I wish you all the luck. Let us know how you go with the results. Big Hugs . xo