If you put it in the pound, can you get it back?

Sure, unless someone adopts it in the meantime.

And all you have to do is to the Adopt are Us right?

Yeah, you adopt your pet from there after you disown it. :) You can keep another tab open with your pet's name in the search bar, so that you can find it quickly after disowning it.

- i found my pet thanks!! :D