Help on telling work.

Hey all

I’m really struggling to find away to tell my colleagues at work purely because I’m close with one of the girls who is i going through IVF and is having complications. Im really hoping for it is a positive outcome for her but so far it’s not looking good. I’m not going to be able to hide my bump much longer. It keeps me awake at night knowing it’s going to break her. I was planning on telling her before everyone so I can tell her by herself but how would you tell someone?