There is no wording in the Constitution or in the Bill of Rights having to do with abortion. (See Amendment 10 below). At the time when Roe vs. Wade was enacted, 48 States had restrictions on abortion. One State had partial restrictions and one State had free access to abortion.
The powers not delegated to the United States by the Constitution, nor prohibited by it to the States, are reserved to the States respectively, or to the people.
The Judicial power of the United States shall not be construed to extend to any suit in law or equity, commenced or prosecuted against one of the United States by Citizens of another State, or by Citizens or Subjects of any Foreign State.