I Am Expecting to Give Birth to a Villainous Gwang-soo

[Fantasy, Western Setting, First Love, Dimensional Travel/Soul Swap, Misunderstanding/Mistaken Identity, Royalty/Nobility, Politics, Handsome Gong, Cold Gong, Tsundere Gong, Obsessive Gong, Sweet Gong, Gentleman Gong, Strong-willed Su, Ordinary Su, Pregnant Su, Runaway Su, Dependable Gong] I possessed the body of an extra, male omega in a fantasy omegaverse BL novel I read in the past, who was about to die by guillotine! Moreover, inside my belly is the villain who torments the protagonist in the novel? Wait a minute! "So, in the end, I'm going to die in a few months?" I'm still a virgin who hasn't even experienced a night of burning passion, let alone dating! I'm only twenty, are you t...