Hello Danny89901,
Thanks for using Apple Support Communities. It sounds like you’re having an issue with photos disappearing. I’d be happy to provide some guidance.
First, I suggest trying the steps in the following article:
Get help with missing photos - Apple Support
If that doesn’t help, you would need to restore from a backup which included those photos. You can find instructions for restoring from a backup here:
Restore your iPhone, iPad, or iPod touch from a backup - Apple Support
If you do not have a recent backup, and the photos are not stored elsewhere, there would not be another method to retrieve them.
Take care.