If I recall correctly, may owned a beautifuly, squirtle, bubasaur, skitty, munchlax, combusken, and eevee. So was she really carring 7 Pokemon during her journey? I thought you can only have 6 at a time?
She did have 7 Pokemon overall but she left Beautifly and Skitty in Hoenn leaving here with: - Munchlax - Venusaur - Wartortle - Glaceon
To read up on extra information on May use this link which happens to be my source as well. Source
Hopes this helps ^-^