I dont know any stories anectdotally, but I would try not to worry too much Your body produces the milk making hormones at their highest AFTER you have the baby, all those hormones are good for something!
As you said every pregnancy is different, I think your boobies are probably well adjusted after going through all this before, they know what to do now.
Try to to wrry too much about it, I think that stress can be more detrimental than anything. Good luck xx (not that you'll need it!)