I had the same thing happen this season. The lactating doe this time of year means there is a low buck to doe population in the area you're hunting. The doe bred late which means she went into a 2nd or 3rd or 4th estrous because there was not enough bucks in the area to breed her the first time around. However, the young deer by this time should still be ok on his/her own. That's why they structure the hunting seasons when they do. Don't sweat it.