Her original plan was that Yuan Xiaobai would get pregnant, and because of the child in Yuan Xiaobai's belly, her brother would have no choice but to marry Yuan Xiaobai. After marrying, Yuan Xiaobai would give birth to the child, but… even after giving birth, her brother would not love Yuan Xiaobai, nor would he love the child in Yuan Xiaobai's belly.
Her brother would forever dislike her!
Her brother would never love any woman other than Song Huanyan…
Even if her brother did not love her, could not love her, she did not want her brother to love another woman.
By marrying Yuan Xiaobai and having a child, the Jun Family would have an heir, and her brother would not fall in love with someone else.