Must the Reincarnated Mother Always Die?

Historia

Lilliana is a neglected princess with a single mission: do not get pregnant. Ever since she woke up in a novel where she will die giving birth to the main character, Lilliana has known that her pregnancy will be her death sentence. However, her mission’s greatest obstacle is her new husband, Emperor Helio. Although they have married for political reasons, the ruthless emperor's fondness for Lilliana drives him to decide that his mission is to win her over. Thus begins the battle of wills between wife and husband. Will Lilliana be able to defy destiny and Helio’s affections?

Sinopsis vía AniList (en inglés).