Announcing baby #2

Danielle
I don't know why but I am FREAKING out about announcing baby #2. My first marriage didn't work out and now I am pregnant with my boyfriends child. We are excited, however I'm not sure how the families will feel. I am the only girl out of 5 children and I'm
Sure they will look down on me for my
Situation. I am almost 24 though, I have a steady career and relationship. I don't want to tell anyone. I don't even know how to tell them. 
Anxious rant over. Advice or encouragement?!