They never picked up on my lymph node being positive until I had the actual surgery, then I ended up with a second surgery to remove all nodes, just to make sure it was all gone. Nodes usually mean you will need chemo. They can do it before or after the surgery so more waiting for you to see which they choose.
There will be a meeting between your surgeon, an oncologist and a radiographer to sort out a treatment plan. Then they will put the suggestion to you.
I found it kind of surreal that I had to get quite sick with chemo to treat breast cancer that didn't really bother me at the time at all. One day at a time and you will get through it. <3