+1000000 on preparing for eggs.

Truth is, she may or may not become gravid and lay eggs. Just because she locked doesn't mean she'll lay eggs, or that the eggs will be good eggs.

However, just like in humans or any other species, if they're locking up, there's a chance of becoming gravid and laying eggs. The chance is actually a good chance.

As for the October thing, that's a joke, from what I keep reading. Breeder after breeder answers your type of question over and over with the fact that they breed year round. In fact, many are hatching clutches nearly every month of the year. IN THE WILD, they typically lock in the fall, build in the winter, and lay in early spring. But your habitat is not the wild. Likely, your snakes were captive bred and hatched. They've never been in the wild. If they feel they're ready to breed, they'll breed, regardless of the time of year...

I'm not all that convinced that breeding is most successful in the fall and winter. It's not my experience, and others say it goes year round. That being the case, I'd prepare for eggs well before they come. Get the incubator set up, tweaked, and completely ready. Good luck on your pairing, and above all, have fun with it!