can i get my photos off my disabled iphone7 if not backed up?

Regarding your data, If…

1. You have an iCloud or iTunes latest backup, then there is nothing to worry. If not read more...
2. You have synced your data to iCloud, then what you will get back is what you have synced to iCloud and uploaded to iCloud Drive; like the information that are synced and stored in iCloud are, Contacts, Calendars, Bookmarks, Mail, Notes, Voice Memos, shared photos, iCloud Photos*, Health data, call history, and files you store in iCloud Drive. (*-If you had turned on iCloud Photos, your content is automatically stored in iCloud.)
3. You have imported your Photos & Videos to Mac/PC then they are safely residing there on Mac/PC
4. You have uploaded some of it to Cloud Drives using Files app (iCloud Drive, Google Drive, OneDrive, DropBox, Flickr, box, AmazonDrive, Adobe Creative Cloud etc). The data remains there.
5. You have not backed up or do not have latest backup, nor imported nor you have synced nor uploaded your data to cloud drives prior to the situation that you are in, then I am sorry, all your data is lost.

Hi,

if your device is disabled and you don't remember the passcode you can only follow a procedure that remove the passcode but also erase all the data in your IPhone. So, you need a back up to restore your device and recover your photos. If you haven't got a back up you can't recover your photo.

In this article is indicated how to cancel the passcode --- > https://support.apple.com/en-gb/HT204306