Searching for an omegaverse

I read an omegaverse and forgot about the title.
It was a full colour and the seme was black haired and kind of business like and the uke was blonde.
The couple didn't
knew each other that well and "accidentally" had sex because of the ukes rut.
But they didn't use any protection an the ukes became pregnant.
The seme was not thrilled but sincere and wanted to take care of both of them.
And in the end they naturally became a couple and the rich family of the seme was also happy for them.

Can anyone please help me with this one I would really enjoy a reread!!
(=・ω・=)