Look at your Pal Pad, I believe... it should be in the same pocket as your bicycle/explorer kit/poffin case/etc.
...monsters I'm looking for... I don't suppose by any chance you have:
Chikorita,
Cyndaquil,
Totodile,
Lugia,
Ho-oh,
Mew,
Celebi,
Jirachi,
Entei,
Raikou,
Suicune,
or Zapdos?
I wish they would do a remake of the Johto games like what they did with Kanto in FR/LG.