It looks like there are two editions of this. The first one is in a single volume (which I previously translated), and it includes the stories up through chapter 4. In the second edition, the stories are broken into two volumes, and volume two includes several additional postscript stories. This translation only includes the additional content.
https://www.mediafire.com/file/q0e0aoizflrbefx/Watakushi_no_Ohimesama.zip/file
Volume one is at:
https://safe.yuri-project.net/res/26807.html