Please Call Me the Protagonist's Nemesis

The reason why I work so hard is not because I am coquettish, but to defend my right to have a baby! You ask me why I have to stare at the protagonists and fight? I don't want to either. Who told me that all the girls I like have the title of heroine? ! Is it natural for the male protagonist to match the female protagonist? Pooh! If you can split a pair, it's a pair. If you don't split them, how can I have a chance? ! If I want to blame it, it's the person who gave me the ability. It's so shameless! It is really difficult for non-heroines to meet the conditions for having a baby with me. What can I do? I'm desperate too, okay! Ps: Not a time-travel story.