There are 14 Egg Groups that a Pokemon can fall into, 15 if you include Ditto into his own group. If you don't want to use a Ditto for specific reasons, you'll have to find two Pokemon that fit in the same Egg Groups. Ditto is usually the go to Pokemon for many Breeders who want an Egg with little effort. The majority of Legendary Pokemon cannot breed because they're genderless, but some genderless Pokemon can breed with a Ditto. Eventually, the Day Care man will stop you and tell you about the egg he found. If you have nothing else to do in the game, ride your bike back and forth along Route 3. Using the Round Charm will speed up the chances of getting an egg from the Day Care man. The game requires you to move around to pass the time.

Waiting for the time to pass by will not help create an egg. After that, you must wait until they make an egg. If the Pokemon match up, the male day care owner will tell you they enjoy being together. While your Pokemon are at the Day Care, they will level up and may learn new moves, but they will never evolve.

The Day Care is located on Route 3, which means you won't be able to breed in Black 2 and White 2 until after the Pokemon League.

In order to breed Pokemon, you must put two correctly matched Pokemon in the Day Care.

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