Telling people you are pregnant

Jackie
Hi ladies. I'm 16 weeks pregnant after a 17 week loss in February. I've told some friends, a few co workers, but I haven't made a formal announcement at work so there's a lot of people who still don't know. I want to tell e everyone at work but not sure how. I work in an office of about 35 people. They all know about my previous loss too. Any suggestions?