When I subscribed for a month through PayPal, I didn't sign up and make a Paypal account. All I did was give my credit card info. How would I go about canceling my subscription if I don't have a Paypal account?
If you paid through PayPal I assume you must have some how registered an account? If not, go and register properly on PayPal with the email address you use.
Check your emails for anything from PayPal though and go from there.
There are two options, I believe, when you sign up: #1 pay for a month #2 monthly subscription. If you signed up for a month, you should be fine. It's not recurring. If you signed up for monthly with out a Paypal, I assume it would be under Settings under Subscription options/settings.
Be one with yourself and know you can do anything when you are friends with yourself.