Will my bread dough that has already gone through first rise be okay to bake after three days of refrigeration?
From experience... No, it will probably not be 'okay to bake'. It's not going to rise, the yeast will most likely be spent.

Try mixing more dough and incorporate a third of your dough into that as a starter. Then, when that dough is finished mixing, cut a third of it and put it in the fridge for the next time you make bread. Then you've got a heck of a nice starter going.