Who is Ashley St Clair, who claimed she gave birth to Elon Musk's 13th child?

Ashley St Clair is a conservative influencer who has authored three books, including a children's book called 'Elephants Are Not Birds', as per Goodreads. She reportedly moved into an apartment in Manhattan last year. Notably, while Musk has not confirmed or denied Ashley's claim that she gave birth to his 13th child, he is still following her account on X.