ordies do it, and occasionally concinnus' too. usually during the cool down phase right before brumatiing. Whether they lock up or not you can just brumate them as planned. Gestation will likely begin when you bring them out. They can either hold the sperm and use it in the spring, or they can carry fertilized eggs through the winter and they begin developing when temps allow for it. You just shouldn't brumate partially through the gestation period, or after the embryos have begun to develop/grow.

This year I even saw fall concinnus mating activity in the wild for the first time, back in late Oct. I see ordies mating in late Oct every year but this was a first for concinnus outside of captivity.

In a bit I'll upload a video I shot in early Nov.. It's concinnus' trying to mate in their brumation bin, about a week after taking away their heat, but before being fully cooled.