So. A word of advice. If you intend to ever be moderately prolific as a writer, SAVE YOUR CONTRACTS. Not only that, but you should create a special mail folder for them and dutifully transfer messages there as soon as they arrive.
You may also want to set up a quick-reference sheet so that when an editor contacts you about reprint rights (and they do start doing that, eventually) you can easily tell whether a story's exclusivity period has expired. An Excel sheet is also helpful for tracking whether you've received payment for published stories. (Yes, you should keep track. Publishers are generally honest, but they are also occasionally disorganized.)
My sales log includes the following information:
Format (Text, Audio, etc.)
Date of Sale
Expected pay date (on acceptance, on publication, etc.)
Exclusivity expiration date
I know it sounds unbelievable if you're just starting out, but after you have about ten published stories, it's hard to keep track of who bought what when, and how long it was. The Excel file is a lifesaver when it's time to start talking about reprints.