What type of phone is it - Apple or Android?
Android phones will upload your photos to Google Photos in the "cloud" and store them there (in fact once you set it up it does it automatically)
On your Android phone go in to Google Photos (may just be called Photos) and go in to Settings. Then make sure it is set to back up your photos and specifies a gmail address.
Now go to your PC and go to a web browser and find Google Photos web site here:
https://www.google.com/photos/about/
Logon to that Google Photos web site with your email address and you will find all your photos there (once your phone has uploaded them).
Google Photos gives you a HUGE amount of free storage (not sure what it is now) but you can store loads of photos (and vidoes) there.
If you have an Apple phone they offer a similar service called iCloud I think but as I don't have an Apple phone cant help you with the details.