KAVEH LET ME GET YOU PREGNANT

Can someone help me find this manwha!

The manwha was a omegaverse yaoi (korean), the art style was good and there's no color in the art style (black, white and gray). The mc is an omega, he had blond hair. While ml (I forgot what's the color of his hair) is an alpha.

The plot was like this:
Ml's family runs a pharmacy (something like that). Ml's family conducted a experiment on omegas' (idk if that was correct). Mc's one of the test subject in ml's family experiment. Mc grow up in the experiment lab where there's a researcher who later rescued him (the researcher a.k.a "mother" run away from the center and brought mc with her). Then later on ml meet's mc, mc was some sort of actor or a musician idk.

When mc got pregnant, it was said that omegas' that came from "that" center (experiment subject) when they get pregnant, they will die from childbirth (and I think that was intended). That's all I can remember from the plot. Can someone tell me if you find the name of this story???

Edit: I forgot to mention that mc's name was "Ray" (idk if that's right)

Can someone recommend me a yaoi where both the main characters are switch