I Broke Off My Engagement to the Crown Prince, So What's Wrong with Marrying the Regent?

Shen Qingtong, a genius doctor from the 21st century, transmigrates into a book as a doomed female supporting character. Looking back on her life in the story:

Shen Qingtong accidentally fell into her fiancé's vicious trap, lost her virginity, and became pregnant before marriage, with no idea who the father was.

On her wedding day, she was framed for adultery, had her engagement broken off, and was cast out by her family. In the end, her half-sister turned her into a human pincushion, and she met a tragic end!

She secretly swore to defy fate and change her destiny as a supporting character!

Punish the sweet-faced villainess, tear her ex-husband to shreds, slap her scumbag father's face, and astonish the world with her medical skills!

The scheming prince gently wrapped an arm around her waist and whispered in her ear,

“My lady, there's a secret I've wanted to tell you for a long time. The child you're carrying is mine.”

Shen Qingtong smiled faintly, lightly circling her jade-like hand around his slender neck as she gazed at the handsome man with tender eyes.

She replied softly, “Actually, I've known all along.”