Can someone teel me what's the name of the manga ( yaoi) where the uke get pregnant but he...

Can someone teel me what's the name of the manga ( yaoi) where the uke get pregnant but he doesn't know whose the father, and it seems like one of the royal families has these thing where they can get someone they banged pregnant, and it was also possible that the seme is in the royal family? its like in historical times? the uke was a leader of the knight


I dont know i just read it in the second chapter and my computer just crashed down and it didn't record in the history. I dont know if you can understand my description Lol