If you don't need to recover now.. but are using the time to plan... don't investigate photo recovery software.
INSTEAD PLAN YOUR BACKUP STRATEGY
that way, instead of messing about with software, crossing your fingers and hoping to get lucky, you can just copy them from your backup.
Online is good.. you can encrypt if you prefer.
If not.. its harder work, but you can do it offline, and off site... you just need to do it regularly.