Just to follow up a bit with some biology stuff. This may be offensive to some, but the fact is when you take a doe after the rut, she is likely pregnant. Biologists use fetal data to determine conception dates, fawns per doe and the peak of breeding. Normally here some does get bred in late October, some as late as February, but the peak of breeding (statewide) is always a week around the 15th of November..
When you field dress a late season doe, the uterus will resemble the urinary bladder, the fetuses will be inside.
The length of the developing fetuses will determine the conception date. The QDMA folks sell these scales, which many active managers use to help with adequate doe harvest and population modeling. In healthy growing populations, twins and triplet fawns are common. I normally only see single fawns in does that were bred as a fawn or yearling. This doe was over 5 years old, based on tooth wear.
My apologies if I ruined your lunch.. :0