Roe, however, was remarkably loose in its treatment of the constitutional text. It held that the abortion right, which is not mentioned in the Constitution, is part of a right to privacy, which is also not mentioned. See 410 U. S,., at 152-153. And that privacy right, Roe observed, had been found to spring from no fewer than five different constitutional provisions—the First, Fourth, Fifth, Ninth, and Fourteenth Amendments. Id., at 152.
The Court’s discussion left open at least three ways in which some combination of these provisions could protect the abortion right. One possibility was that the right was “founded . . . in the Ninth Amendment’s reservation of rights to the people.” Id., at 153. Another was that the right was rooted in the First, Fourth, or Fifth Amendment, or in some combination of those provisions, and that this right had been “incorporated” into the Due Process Clause of the Fourteenth Amendment just as many other Bill of Rights provisions had by then been incorporated.