Did you back-up today?
If not, think about the instances where you have lost images in the past.
Did you forget to transfer the pictures from your old phone when you bought the new one? Did you accidentally delete a folder with its content? Has your back-up drive ever crashed?
The reasons for data loss are endless. Don't Delay. BACK-UP NOW!
For best protection follow Peter Krogh's 3-2-1 Back-up Strategy.
3 copies of each file, stored on 2 different media, with 1 off-site copy.