Does the blond hair already know that the baby is his? I dropped it and feel like reading ...

Noope

Sameee dude! Imma be back when he knows that he is the father

Not yet but the prince started the assumption in latest chapter there.
Something like "maybe the babys mine if not ill be the father and got louis and the baby im my arm", something like that, but he still got another thought that louis was did it with another person.
.
Its getting interesting, curious and iritated at the same time, but many points beside the prince assumption to baby that im interested in, u should continue reading this.

Thank you!

Does louis know that the prince is the father?

Not yet but he know who had segg with him, he still confused but he know abt he did it with red haired royal family man, but he never involved with Allail (the only red haired in royal family).
So yeah the some twist there with red haired man issues u shuld continue read in 3 or 4 updated chapter ahead, cus it cliphanger rn

Thank you so much!