When was your repeat c-section scheduled?

So for those of you who have had a repeat c-section when was it done? My c-section is scheduled for 39weeks 4days and I am so miserable!! I know all women say that but I have this throbbing pain on my old right side of my incision I cry everyday in pain. I see my ob tommorow but just wondering when is the soonest they usually allow it. Thanks!