icloud backup

Hi gurlaldhillon,

Thanks for posting here in Apple Support Communities. We're not quite sure what you mean by "after 30 days". However, you can either backup to iCloud or turn on iCloud Photos, which are not included in your backup. You can see more about this here: What does iCloud back up? - Apple Support

If you're using iCloud Photos, your photos are synced between all your devices that use the same Apple ID. See: Set up and use iCloud Photos - Apple Support

iCloud Photos automatically keeps every photo and video you take in iCloud, so you can access your library from any device, anytime you want. Any changes you make to your collection on one device change on your other devices too. Your photos and videos are organized into Years, Months, Days, and All Photos. And all of your Memories and People are updated everywhere. That way you can quickly find the moment, family member, or friend you're looking for.

If you're referencing the Recently Deleted album in photos, the photos are permanently deleted after 30 days so there is no backup that could be done. Check this out: Delete photos on your iPhone or iPad - Apple Support

Delete photos or videos

When you delete photos and videos, they go to your Recently Deleted album for 30 days. After 30 days, they'll be permanently deleted.

If you use iCloud Photos, and delete photos and videos from one device, the photos and videos will be deleted on your other devices.

Kind regards.