@Eytherya
Novel update is your friend. Note that I haven't read it so not sure about novel translation quality.
https://www.novelupdates.com/series/the-baby-isnt-yours/
Apparently the links lead to wattpad, you might need to register if you haven't done so, since they will restrict your reading after a certain amount of chapters iirc.
https://www.wattpad.com/story/212618976-the-baby-isn%27t-yours-it%27s-not-your-child-%EB%84%88%EC%9D%98-%EC%95%84%EC%9D%B4%EA%B0%80