Better install an automatic backup cloud app..

I am also looking for the solution.

It's possible that you can recover the photos if you didn't overwrite where the files were physically located on your phone. You need some special recovery software to do so.

I recently had all my photos disappear! Im really unsure how it happened, maybe I sat on my phone and deleted them. At the same time I recently shot a bit of video and the got a warning message I was running out of drive space, don't know if this had anything to do with it.

But anyway, wondering if there is any program that can actually recover deleted photos?