foul mouth

I swear a lot... like a lot a lot. And people are telling me I need to clean up my mouth since I will be having a child. I understand I can't be constantly saying "fuck" and other shit like that. But also I will tell my child that they arnt aloud to swear until they are older. But I hate when people tell me what to do with my child on the way. I don't mind when people suggest things like saying "oh you might consider..." or "you might want to think about.." but when people full on tell me what I need to or have to do. It pisses me off.