May I know when a person curses one another, eg: during an argument or if one of the person is pregnant and cursing the other, does the curse come true? Please do shed your knowledge over the topic of cursing one another in Islam.

Cursing is not a good verbal action whatsoever. In fact avoiding it is at all times better and much more moral only in the event of oppression is being imposed in the person, that person is allowed to a very limited and specific term to curse and if the one that the curse of said against is a mumin then cursing us not allowed

Please read this for further clarity: