Hopefully a woman would be able to travel to another state or a woman's group would start some kind of 'underground railroad' to help them.
A law like this requiring consent would be patently unconstitutional under Roe v. Wade and would be challenged in court immediately. The only way for it to be lawful would be if Roe v. Wade is overturned, and if that happened, Oklahoma and a bunch of other states would just outlaw abortion all together.