I bred a shiny 7 months ago and didn't even notice!

[Raphetty]

I was originally breeding for an HP Fire Bulbasaur using a French (iirc) shiny Venusaur as the father which I have since traded away.

I was just looking through the mass of Bulbasaur which I was storing in Bank, so I could find a father for breeding an HP Fire Contrary Snivy, when I noticed the red star which signifies a shiny. I also keep a note of the stats from the Judge and Hidden Power checker, and yes I had checked it previously, but still hadn't noticed that it was shiny.

By the way, this is the only shiny I have ever bred (unless of course there is another one I have not noticed).

I've just checked its IVs, and here it is:-

Bulbasaur - #001 (Modest) Male (♂) : 21 / 31 / 31 / 30 / 6 / 31
Possible Hidden Power Types: Ground
Ability: Chlorophyll