Sorry about your news, OP.
I was recalled once. I got a packet of info explaining what would happen, and that the large majority of women recalled do not have cancer.
At the breast clinic I was first given a more intensive mammogram on both boobs. Then a consultant did an ultrasound of the one that had been flagged, and the mammograms were read.
At that point I was cleared. If there were still suspicions, the next step would have been a biopsy. I think that is usually done on the day but results can take a while.
Early BC is very treatable. Cancer specialists often shy away from the word cure but there are many, many women who are never bothered by BC again after the initial treatment. The odds of this are good. Of course every death is one too many.
This is alarming and I am not minimising the problems, but at this point the odds are (a) that you don’t have cancer and (b) if you do, it can be treated successfully.
I have dense boobs, according to the consultant, but didn’t find the mammograms painful. They are particularly snug, though.
Very best wishes