This is you both not understanding what the role of the Supreme Court is, and also what Roe V Wade actually said:
"The Constitution does not define "person" in so many words. Section 1 of the Fourteenth Amendment contains three references to "person." The first, in defining "citizens," speaks of "persons born or naturalized in the United States." The word also appears both in the Due Process Clause and in the Equal Protection Clause. "Person" is used in other places in the Constitution: in the listing of qualifications for Representatives and Senators, Art. I, § 2, cl. 2, and § 3, cl. 3; in the Apportionment Clause, Art. I, § 2, cl. 3; in the Migration and Importation provision, Art. I, § 9, cl. 1; in the Emolument Clause, Art. I, § 9, cl. 8; in the Electors provisions, Art. II, § 1, cl. 2, and the superseded cl. 3; in the provision outlining qualifications for the office of President, Art. II, § 1, cl. 5; in the Extradition provisions, Art. IV, § 2, cl. 2, and the superseded Fugitive Slave Clause 3; and in the Fifth, Twelfth, and Twenty-second Amendments, as well as in §§ 2 and 3 of the Fourteenth Amendment. But in nearly all these instances, the use of the word is such that it has application only postnatally. None indicates, with any assurance, that it has any possible pre-natal application."
The Court, however, did not immediately lean into the idea that the unborn have no status:
"All this, together with our observation, supra, that throughout the major portion of the 19th century prevailing legal abortion practices were far freer than they are today, persuades us that the word "person," as used in the Fourteenth Amendment, does not include the unborn.
This conclusion, however, does not of itself fully answer the contentions raised by Texas, and we pass on to other considerations. The pregnant woman cannot be isolated in her privacy. She carries an embryo and, later, a fetus, if one accepts the medical definitions of the developing young in the human uterus. The situation therefore is inherently different from marital intimacy, or bedroom possession of obscene material, or marriage, or procreation, or education, with which Eisenstadt and Griswold, Stanley, Loving, Skinner, and Pierce and Meyer were respectively concerned. As we have intimated above, it is reasonable and appropriate for a State to decide that at some point in time another interest, that of health of the mother or that of potential human life, becomes significantly involved. The woman's privacy is no longer sole and any right of privacy she possesses must be measured accordingly.
Texas urges that, apart from the Fourteenth Amendment, life begins at conception and is present throughout pregnancy, and that, therefore, the State has a compelling interest in protecting that life from and after conception. We need not resolve the difficult question of when life begins. When those trained in the respective disciplines of medicine, philosophy, and theology are unable to arrive at any consensus, the judiciary, at this point in the development of man's knowledge, is not in a position to speculate as to the answer. "