Question: what episode of grey's anatomy does christina get an abortion?
Answer: Grey's Anatomy, Season 7, Episode 22: Unaccompanied Minor; Season 8, Episode 1: Free Falling. Dr. Cristina Yang is performing an intake on a patient who can't remember when she had her last period. While trying to jog her memory, it dawns on Cristina that she cannot remember the last time she had her period.