Does a PKMN get its nature as soon as its made into an egg or as soon as it hatches?

[Darverses]

Only shortened "Pokemon" to "PKMN" because there wasn't enough room.

And is this in the right forum? I remember there being a thread I went to for all my Pokemon questions, and I feel like this one isn't it for some reason...

Does a PKMN get its nature as soon as its made into an egg or as soon as it hatches?

 

[DonRoyale]

As soon as you obtain the egg, the nature of its contents is set.