Just found this while hatching, can’t believe I never saw it before
I had recently hatched egg that was from 30 JANUARY 2017, as well as one egg from april that i also hatched.
I have some older eggs. I don't even bother with extra incubators anymore unless they come in a gift box so I don't go through many eggs. I put my coins into lucky eggs and storage expansion
I still have the 2x 10km eggs that I got while traveling through Italy during Easter.
No. Ever since they started posting the dates on the eggs, I always hatch the oldest first.