Can I use one of your forms on my Facebook page? I do not have a website.

Yes, you can. Here's how you can add the Facebook to your Facebook page: https://www.jotform.com/help/22-Adding-Form-to-Facebook-Pages. 

You can also add your form using third party iframe app creators: https://www.jotform.com/help/82-Adding-Form-to-Facebook-Custom-iFrame-App-.