She is on 6 eggs.Gosh I wish I knew.... How exciting! I think I heard that once they hatch, they never return to where they were nesting, so maybe that might help you figure it out.. I have often wondered the same thing. I also think moving her now would be better than when she is closer to hatch. How many eggs are under her?
Sorry, wish I could be more help,,, Brooster might have some input... let us know!
MB