According to the plot provided, I recommend the novel, The World's Favorite. The female lead was a genius medical doctor. After transmigrating to become the abandoned concubine of the King of Chu, she was misunderstood as a villain, but she still adhered to medical ethics to save people. After the misunderstanding, the male protagonist misunderstood the female protagonist, but in the end, the two of them resolved the misunderstanding. The female protagonist gave birth to the child for the male protagonist. In a critical situation, the female protagonist used medical skills to save the male protagonist's illness. The male protagonist of this book was named Yuwen Hao, and the female protagonist was named Yuan Qingling. I hope you like this fairy's recommendation. Muah ~😗