you are right, but saying "There is no right to privacy in the Constitution" even though it is true makes ignorant masses really nervous and it makes for good moveon.org ad soundbites. I like to joke that the right to an abortion is right under the right to privacy in the bill of rights ... and many people dont get it.
Actually, Amendments #3, #4, #5, and #9 all presuppose a right to privacy. That has nothing at all to do with abortion, of course, despite where a rogue court declared cold-blooded murder "privacy".
I'll bet they don't get it! You and I both know that the right to privacy is in the same article that has the separation of church and state.