I believe it depends on where you are - your hospital and the process they have in place
I was visited by the Breast Care nurse day after the surgery and had no clue about them prior to that
But they are invaluable and if I was you I would either call the cancer centre at your hospital and ask to be put in touch with one or theocal breast screen place as they have breast care nurses working there and they too can help with advice
Also do note that the helpfull gifts / pressies are not the same everywhere and not every breast care nurse has access to them. At least that is my impression as I did notice from comments on this group that our experiences do differ
Jel