Judith Saunders foregrounds this aspect of the novel in her essay on the evolutionary aspects of The Great Gatsby (citation below). Gatsby's wealth is a courtship display, much like the feathers of a peacock. Its purpose is to attract Daisy. For my earlier blog entry on Saunders' investigation, click here.
Naturally, when someone uses the word womb in a literary context, I think of the novel A Confederacy of Dunces, by John Kennedy Toole. That novel has more than one symbolic womb: Gus Levy is trapped in a womb from which he escapes, and, at the beginning of the novel, Ignatius Reilly enjoys occupying the womb of his mother's house and fights to stay there as she tries to eject him. Confederacy also features a relationship between Ignatius Reilly and Myrna Mynkoff that can be read as a carnivalesque parody of a stereotypical romance. Despite its ridiculous quality, could Ignatius's behavior in the novel be a courtship display, much as Gatsby's display of wealth?
In Confederacy, both Ignatius's Crusade for Moorish Dignity and his efforts to lead a political revolution of gays are undertaken because of the provocation of Myrna's letters. He wants to impress her. In the end of the novel, Myrna comes to New Orleans and rescues Ignatius. He would never admit to courting her, but he was trying to get her attention. In a backwards sort of way, his courtship has succeeded.
Saunders, Judith P. "The Great Gatsby: An Unusual Case of Mate Poaching," American Classics: Evolutionary Perspectives (Brighton, MA: Academic Studies Press, 2018): 138-174.
Thesis: Compare Ignatius Reilly to Jay Gatsby. Gatsby is undertaking a courtship, but is Ignatius doing so as well? Gatsby's efforts end tragically. Ignatius's efforts end comically.