There is no explicit right to an abortion spelled out in the Constitution, and never has been. That’s why Roe v. Wade is based on a Constitutional right to privacy — as in “the right to be safe from government intrusion against our persons.”
That is and always has been the position of Judge Brett Kavanaugh’s and others who maintain that the law means what it says and says what it means.
In other words, the doctrine of “stare decisis” — aka precedent.