Groomsman, Stay Away!

I finally married my beloved, but on my wedding night, I was designed to sleep in the bed of the 'best man'! The next day, I was forced to sign a divorce agreement, swept out of the house, and my best friend took my place as Lady Lu.
Even my biological parents find me useless, you piece of trash! He couldn't even protect his own marriage!
I wanted to die, but I suddenly realized that I was pregnant with the third young master's child …