
It's a bl Manhwa.
Uke was initially a cute adorable boy who idolized the seme and pretends to be a bully/delinquent by the seme's words. Seme goes abroad when uke was young and then returns not long after the story begins. Uke and seme should both be in high school iirc.
Uke is now misunderstood as a delinquent however he's still quite silly and adorkable.
So I read this spoiler from most likely another comment or from the forums.
Basically the baby is not the ML's baby. The father was the former crown prince. Currently the crown princess is already pregnant (hence why her father is anxious for ML and crown princess to get married/engaged asap). So even if ML and FL ends up together, the baby will still be born.
Omg thanxs