Newly diagnosed - await treatment plan

Well, I got the results yesterday after chasing up the doctor through the breast care nurse and my GP. The contrast mammogram didn’t find any more lumps but the lump is bigger than they told me from the earlier mammograms and ultrasound. 3cm rather than 2cm. I’m having surgery next week, then wait until 2 February to get the results and treatment plan. I’m feeling much better now I have a surgery date and know there doesn’t seem to be other lumps but a bit scared that it’s larger than they told me. The lump is still sore but that’s probably from the infection. The antibiotics have helped a lot.