best unexpected pregnancy romance novels

Wen Ruyi, the abandoned illegitimate daughter of the marquis' household, unexpectedly returns home after years away. To the world, she's just a substitute bride for her perfect, legitimate sister. But beneath the surface, she carries the weight of a darker purpose—seeking justice for her mother's death. As the vibrant capital buzzes with intrigue, the culprits behind her mother's tragedy begin to reveal themselves, one by one. With her heart torn between the past and the future, how will she decide what path to take?

Clarissa Yowell once saved Julian Slater's life. In return, he promises that if he ever becomes emperor, he'll make her his empress. Now that he has finally ascended the throne,everyone is eager to know who the new empress will be. Clarissa is certain it's her—how could it not be? But in the end, she's the last to find out that the woman Julian chooses is his childhood sweetheart, Sophia Lynch.

The eldest legitimate daughter Libby Wolfe is reborn and returns to a life that will be completely different this time.

Ten years ago, Wilson's newlywed wife, Whitney, mysteriously vanished. In his search, he adopted a daughter who later became the world's richest person. Now, after finally locating Whitney, Wilson discovered she had amnesia and was a renowned CEO. Taking a job as her driver, he dedicated himself to helping her regain her memories. After overcoming challenges together, they reunite as lovers.

The Empress's daughter, Xia Yan, was forced to leave the palace at birth. The Emperor searched for her for seven years, only for her stepsister to assume her identity in her stead. Determined to prove who she truly is, Xia Yan becomes the youngest magistrate, solving cases and eventually capturing the Emperor's attention. With the help of Zhuge Bowen, she reclaims her rightful identity and all that belongs to her.

Prince Consort Gavin Vale marches to war for his country,only to fall on the battlefield. Yet back in the capital, the princess believes he is hiding away at the Guardian Temple, shirking his duties—and in her bitterness, she chooses to marry another man.But on the day of her wedding, a devastating truth shatters her world: Gavin died fighting for the country,and it was he who once risked his life to save her.Consumed by grief and remorse, the princess takes justice into her own hands, slaying the man who had stolen Gavin's rightful honor.

In a world where emotions run wild and secrets lurk in the shadows, Kristen, an orphaned servant, finds herself entangled in a web of love and betrayal. When fate unexpectedly leads her to Justin, the enigmatic leader, and Allen, the newly appointed Lycan King, Kristen's life takes a dramatic turn. As emotions ignite and alliances shift, Kristen must navigate the turbulent waters of romance and deception.

To avenge her father, Vivian Gale disguises herself as a man and infiltrates the Imperial Medical Bureau, becoming the empress dowager's personal physician—while secretly plotting her downfall. Misunderstood as a foe, she faces repeated assassination attempts from Emperor Edmund Mortimer. Their clash of wits ignites unexpected feelings, until her identity is revealed. They eventually unite to overthrow the empress dowager's tyranny—and find love amidst vengeance.

Three years ago, Gabriella Kelly unknowingly convinced her husband Ray Chambers to sponsor college student Angela Mitchell's education as a blessing for their future child. Three years later, Angela arrives at Ray’s company for an internship with two friends, but she completely misreads the situation and believes Ray is interested in her romantically. She begins acting like she owns the place at work and shockingly mistakes the pregnant Gabriella for Ray's mistress, even going so far as to cause her miscarriage.

Tuanzi, an orphan from a modern-day orphanage, dies in a car accident and transmigrates into the body of the missing granddaughter of the Prime Minister of the Great Yuece Dynasty. Saved by Crown Prince Xiao Yu, she learns that her mother, Yue Qing, is imprisoned and needs the Imperial Seal and the Emerald Edge to be freed. Tuanzi excels in her imperial exams and gradually uncovers that her aunt, Lin Yue, discarded her mother's necklace. As Lin Yue's malicious deeds slowly come to light, her second uncle, Yue Xing, sees his restaurant become successful with Tuanzi's help. Meanwhile, Crown Prince Xiao Yu faces political roadblocks, and Tuanzi proposes a new way to help refugees—teaching them skills instead of just giving them handouts.

Evelyn Willow, a strong female general, is honored by the emperor with the title of "Wise General" for her victories. Returning to the capital for her sister Vera Willow's wedding, she's mistaken for a beggar due to her worn clothes. Despite this, Vera fiercely defends her. But on the day of the wedding, Vera is betrayed by her entire in-law family. Evelyn uses her power to strike back, defending her sister's honor. After helping Vera annul the marriage, she arranges a new match with Caius Nelson. On the day the duke sends his betrothal gifts, both sisters unexpectedly encounter the parents who abandoned them. Evelyn decides to make them regret their actions for the rest of their lives.

Meng Yin, a young man from the modern world, suddenly finds himself transported back to the ancient Daxian Dynasty, landing in the unexpected role of a county magistrate. Just as he’s adjusting to this new life, he’s drawn into a dangerous power struggle between the fierce Empress and a group of corrupt ministers bent on seizing control. Facing threats on all sides, Meng Yin must rely on his modern knowledge and clever tactics to outwit the scheming officials. Together with the Empress, he fights to bring justice and prosperity to Daxian, helping to usher in a golden age for the kingdom.

Globally renowned hacker Zero, Brian, remained hidden in his fiancée Mary's company to repay a favor. When Mary, disdainful of his rural mother, secretly severed ties with her under Brian's name, he sought divorce and resignation. Despite Mary's pleas for forgiveness, post-IPO, her decision to fire Brian led to the company's downfall.

Xandra Quinn has only ever had her grades. So when school heartthrob Robert Miller confesses publicly, she shocks everyone by saying yes. She knows it's a trap set by her jealous rival Amelia Moore, but why refuse? Xandra stops studying, openly wasting time with Robert, while Amelia celebrates her "victory." What she doesn't know—Xandra already has a Harbard offer. On exam day, Amelia mocks her, only to find Xandra revealed as the national top scorer—with a perfect score.

In her previous life, during senior year, Hilary Yates discovered that her classmate, Marian Evans, had secretly sabotaged all her classmates' college entrance exam applications,downgrading them to vocational schools. Hilary quietly restored everyone's applications.When Marian's actions were exposed, she ran to the rooftop to plead her innocence but tragically fell to her death. The entire class—including Hilary's boyfriend,Jim Sutton—blamed Hilary for Marian's demise. Consumed by hatred, they unleashed cruel revenge, driving Hilary's parents to a tragic end and beating Hilary herself to death.Now reborn, Hilary refuses to intervene as the same events unfold. This time, she watches coldly and lets them destroy themselves.

Addison Rowe is the true heiress who is reunited with her family 12 years ago. Upon her return, Addison falls in love with Jensen Lott at first sight and eagerly pursues him. However, Jensen looks down on Addison for her country origins and rejects her advances.

In his pursuit of a non-materialistic life partner, a billionaire CEO, Cyril Saul, masquerades as a deliveryman to explore blind dates.During one such encounter, a girl named Sabrina Doris, oblivious to his true identity, makes a startling confession, "I seek no wealth, no lavish homes, nor fancy cars. If you sincerely care about me, I'm ready for a simple life with you. Will you marry me?" By the time they met, Sabrina was having lunch with her snobbish future mother-in-law, who disparaged her modest family background, assuming she was only after money. The woman even presents Sabrina with an unfair prenuptial agreement.

On the day of Valeria Castle's engagement, her mother, Marilyn Castle, arrives at the banquet disguised as a cleaner, only to face humiliation from the Hardy family. A wealthy woman fights her over a parking spot, her future mother-in-law enforces strict household rules, and her fiancé demands an outrageous betrothal gift. But Marilyn soon reveals her true identity. Wayne Cuddy, Aaron Shaw, and Basil Brady step in with a billion-dollar dowry, instantly turning the tide. From that moment on, she proves her strength time and again, expertly resolving the crisis at Price Corp. In the end, as foreign capital threatens their empire, she takes Valeria abroad—ready for the next battle.