Hi there, DDKgohawks!
Thanks for reaching out to the Apple Support Communities! It sounds like you're missing a month of a subscription. You came from an excellent article to See or cancel your subscriptions and be sure your subscription is active. Since you're seeing the next months and not the previous month, we suggest checking out this article to Download and delete magazines in Apple News:
"You can also download back issues from a magazine's channel feed. Just tap or click
below the issue that you want to download, then choose Download Issue."
This will allow you to check if there is a back issue available.
You'll find more information in this article to Read magazines with Apple News+.
Let us know if you continue to have an issue and take care!