If you change your mind before the 14 days are up, just log in and this will reactivate your account.

Visit your Account Settings Choose “deactivate account” Fill out the form, and click “Deactivate My Account”

Visit the delete my account page and click submit. How to Permanently Delete a Facebook Account    TechWorm - 80How to Permanently Delete a Facebook Account    TechWorm - 61How to Permanently Delete a Facebook Account    TechWorm - 3How to Permanently Delete a Facebook Account    TechWorm - 92