Should I announce?

I had a Miscarriage in August at 9 weeks but baby stopped growing at 7 weeks... I'm now expecting again and am officially 13 weeks today. I've shared my news with close friends, immediate family, and Co workers but haven't announced to the world just yet. Just wondering... do you ladies think it's safe to do so (share my news) or should I wait til I make it to 20 weeks?? Baby is growing just fine so far now just waiting on the test results for down syndrome etc.

What ya'll think?