After giving Mr. Pokemon's egg to Professor Elm, he will return it to you for safekeeping. It will hatch into a Togepi.
It all depends on what Pokemon you breed. Almost all Pokemon except legendaries can be bred.
A Lv. 5 Wynaut.
happiny
togipi
larvesta.
A Happiny.
She's in pastoria city.
She gives you the Togepii egg when you have beaten Team Galactic in Eterna City when you head towards the bike shop to get your bike
in Pokemon diamond pearl and platinum their is a boat in canalave city that will take you to a place called iron island go through and a trainer will give you a Pokemon egg that hatches into riolu
in canalave city
Jubilife City
the fith gym is a sychic gym its in heathrome city
happiny
She should be back at her Gym in Hearthome now, since she's the fifth Gym leader and all.
Heartrome city is in Sinnoh and it's only in Diamond Pearl and Platinum your in Kanto dude but heartrome is inbetween Routes 208 and 209 and on top of Route 212
you get an egg from Riley which hatches then evoles to a Lucio when happy! Riley is in Iron Island in Canavel city :)
if you are talking about the one in hearthome city,it hatches into a lv 1 happiny
East of Hearthome City is a fisherman who gives it to you.
She's in pastoria city.
She gives you the Togepii egg when you have beaten Team Galactic in Eterna City when you head towards the bike shop to get your bike
In Pokemon Diamond and Pearl you can receive Eevee from Bebe in Hearthome city.
Level up your guys to lv.46 and go to heathrome city and fight the gym leader!
In platinum Cynthia gives you an egg in Eternia city but in diamond and pearl you can get the egg in Hearthome city. Hope that helps