I know you are thinking about a middle class/professional woman who accidentally becomes pregnant. But the problem with having to pay for an abortion is that it is often poor black girls/young adolescents who become pregnant (they are not the only ones in the USA, but they constitute a substantial share). They or their single-parents can't afford to pay for an abortion, or can't even afford to send the girl to a planned parenthood clinic that is 500 miles away like in the case of Texas for example, whose strict anti-abortion regulations had a lot of abortion clinics closed in the last few years (requirements are too stringent). It is, disproportionately, the poorest who have to carry the burden of a policy that would require the woman to pay for an abortion.