In welk seizoen en welke aflevering van Degrassi werd Mia zwanger en in welke beviel ze?

Dat is niet uitgezonden, ze was al moeder van Isabella (toen 2) toen ze voor het eerst te zien was in serie 6:

Mia Jones, a teen mother of Isabella Jones, transfers to Degrassi as a new student from rival school Lakehurst at the beginning of season 6.

She is first seen in the episode, Can't Hardly Wait, in which then she wants to join the Spirit Squad, but captain Darcy discovers that she has a 2-year old-daughter named Isabella.