Lol dreamsofxy, Im exactly the same I get soo cautious about whether any type of ilness or rash will be contagious or not!
My sisters know about me but I havent told my mum,as much as i love her and we are close but she has such a big mouth!! last time i told her about me when i was expecting DD i told her to lay low till Im atleast 12 weeks he pretty much told everyone who lived on our street and anybody who would come to the house she would tell them Im pregnant!! it was soooo annoying, so this time I will wait to tell her lol