After Transmigration, side villain tried to xx me but I did him first

This story is about an arrogant and rude but adorable side villain who was bullied by our female protagonist the first time they meet . Although it was the side villain doing first but our Fl took the lead . She was transmigrated to the world of novel her little sister was reading where she meet the side villain who failed her plan to live a peaceful life after her Transmigration. After some twist and turn their fates took path of marriage. The female protagonist who never cared about relationship was m in love, the side who was always rude and stubborn was became a cutie pie. Both took care of each other and protected each other throughout their journey while encountering other characters from the plot. Falling in love , fighting each other and reconciling.

Read more in the prologue.
The book cover is not owned by me.
The novel is of reversed couple theme

contains :- Intersex FL , mpreg, reverse couple.