You really don't know what Roe said, other than its ultimate holding.  Roe did not come close to saying that "privacy is an Equal Protection right."  In fact, Roe was not an Equal Protection case at all!!!  The Roe majority mentioned "Equal Protection" only once, to note that the word "person" appears in the Equal Protection Clause.  
The Roe Court did say that some types of privacy are grounded in the Constitution.  Go back and read Roe to find out where it found the right to privacy regarding abortion.  Until you do that, you do yourself a disservice discussing Roe v. Wade.