If you uploaded less than 30 photos and did not select or deselect any photos between the 1st and 3rd of the month, all of the month's photos will be printed.
If you have uploaded more than 30 photos during the month and have not selected any, the first 30 photos of the month will be printed.
If you have not uploaded any photos for the entire month, the journal will not be created and you will not receive it.