Question

Candice • Married, step son. Pregnant with #1
So I have these friends that have been married for like 5 or so years that dearly want a baby, but they are struggling with infertility. I'm 11 weeks now, and I want to share the news. Would it be better to tell them first or put it on fb? I just want to be sensitive to their situation. I know they are hurting. Suggestions would be great!