I posted something last night and it disappeared.

It may take time and luck to get fertile eggs. I adopted a pair of russians and they didn't produce a hatchling for two or three years. It took a better diet, sunshine, and maybe hibernation.

During the winter my torts stayed in the basement, where the temps drop down into the 50s from December to February. The torts went into hibernation without any special effort beyond extra soaks and no food for a couple weeks. When temps got above 60F again, the torts woke up.

Good luck!