I am surprised your peak season is that late in Edwards Co. I would have guessed closer to Dec. 1. I have only hunted there one season though.
Here is what TX parks and wildlife says:
Edwards Plateau
Conception dates for this region ranged from as early as October 9 to a late date of January 30. The Edwards Plateau, Texas' highest deer production region, was divided into three areas for the study. The eastern part had a peak breeding date of November 7. Peak breeding for the central portion was November 24, and the western area had a peak date of December 5. An average of 90 percent of the does were bred and the average number of fetuses found was 1.3 per doe. The majority (90%) of the fawns are born by June 14 in the eastern area, June 26 in the central area, and by July 13 in the western area.
Breeding Chart
Good luck. I would try and kill my buck before he gets goofy and changes his patterns!
pepaw