Thanks so much everyone. Gutmutter, don't worry about it, I've already done the 'what if's' in my head, at least to a certain extent. And I agree that it's better to prepare yourself for the 'worst' . That's wonderful that you've come through the other side of this. I know that the odds are truly on the side of it being ok, but still find it hard to switch off my mind sometimes.
Of course I'm on pins and needles. I've had a muscular type of ache in the side of the breast/armpit for awhile now, sometimes both sides but mostly the right side. I attributed it to hormones and didn't really worry about it since it comes and goes. But it is noticeable, and of course adds fuel to the worry. I'm on the cancellation list so hopefully will get a phone call before next Friday.
Thanks for all the warm wishes.