Where does the Constitution talk about the right to abortion?

The Supreme Court has an abortion case it is debating. Today Justice Thomas asked for some clarity.

Justice Thomas: "If we were talking about the second amendment, I know what we're talking about. Because it's written, it's there. What specifically is the right here [to abortion] that we're talking about?" pic.twitter.com/0JEPecy40z

— Greg Price (@greg_price11) December 1, 2021