Originally Posted by Racer Morose
No, when you don't know you're a father you don't know you have responsibilities and therefore you cannot "run off" to avoid something you don't know is there.
And about him telling her he's Clark... did you ever see Superman II?
Since Lois does not go all "you raped me" on him when she finds out that Jason is his son, it is clear the conception did not happen per Superman II.
I still hold any man who has sex with a women should expect pregnancy to result, and should be ready to take responsibility for it.