I was just looking over the original thread: https://ball-pythons.net/forums/show...en-Child-Retic
In the third, sixith and eighth photos, looks like you can see a bulge, so I would guess she had this before OP received her, it was easy to miss though.
Those are photos I took after I got her. The only photo I have of her from before I got her doesn't show her tail unfortunately...