Whether she planned it or not, it should not be his responsibility.
The woman agreed to have sex with him.
She must have known that having sex with a man might get her pregnant.
Just like a woman who agrees to have sex with a leper must know that she might get sick.
Her catching pregnancy should no more be the responsibility of the man than her catching leprosy.
This business of courts seeing it as the man's responsibility is government's way of escaping welfare payments.
It's not about what's right. It's about the money.
I've always wondered why, with the advent of Roe v. Wade, no one went after this practice on the Constitutional grounding of the "equal protection" clause.
It seems to me, inherently unjust for the woman to have "reproductive choice" from the time she finds out she's pregnant until the actual birth, yet men are stridently commanded (particularly by women) to make that choice before she's even pregnant.