We discussed this topic in From the Experts in the Spring 2009 issue of Deer Tracking.
Lots of calls have come through the office in our 11 years and we know of births 184 up to 213 days, but industry standard is 196, or 200 days according to science.
Our gestation chart showed based on a 190, 196, 200 and 205 day window.
At 196 days, if your does fawned today, they would have been bred on Nov 5.