I am to present a well constructed argument detailing contradictions in Claire's flashbacks. Season 1 episode 10 - Claire upon finding out she was pregnant, some 8 months before the flight took off: "My mum would disown me". Claire's boyfriend : "She basically has already." Some time later when Claire is seeing the psychic, Claire's friend: "She hasn't told her mum yet, we're afraid she -"

Yet in the most recent flashback, set some time before her pregnancy we find her mum in a coma, all the way up until she is pregnant and presumably after as well.

I can think of only three explanations.

A : One is that she finds out at some point between the two flashbacks that her mother is not who she believed she was and is instead someone else, possibly her aunt. This is incredibly unlikely, especailly as in this episode she calls her "mum" when talking to the lady in the coma.

B : She has lied to her boyfriend and friend about her mum's condition to stop them from finding the truth, possibly because she is embarrased that she was driving when the accident occured.

C : The writers f**ked up.