Hey FriDanny, hope you don't mind about this, but when I was hatching the eggs earlier today, I forgot to check the dates the eggs were obtained, so I ended up hatching them all with today's date. The thing that I think makes it a little acceptable is that all those pokemons were breed in June 2009.
Teddiursa's egg was obtained Jun. 15, 2009 and hatched on Jun. 19, 2010.
Vulpix was obtained on May. 31, 2009 and hatched on Jun. 19, 2010
And Pidgey's was obtained on Jun. 7, 2009 and hatched on Jun. 19, 2010
Teddiursa's egg was obtained Jun. 15, 2009 and hatched on Jun. 19, 2010.
Vulpix was obtained on May. 31, 2009 and hatched on Jun. 19, 2010
And Pidgey's was obtained on Jun. 7, 2009 and hatched on Jun. 19, 2010