Overly worried I will get my fiance and son sick

Shirley
So like I said in my title I found out today I have strep throat when I was in with the doctor she had mentioned that my tonsils were close together. I am currently sleeping on the couch I let my fiance have the bed we don't have tv in our bedroom. I am so worried about them getting sick. My son just got over the flu and my fiance hates missing work unless he knows it's super important. Has anyone else have gone through this.