Is it too early to tell the world?

Kacie
We are planning on telling our 9 year old this weekend and announcing on Facebook that we are expecting. We will be 11weeks 3 days. Is that too early? I don't think I can hide it any longer. I was a slightly smaller girl to start with so my belly is starting to pop already. I am scared that if we tell too many people too soon something will go wrong. With my first I didn't tell anyone until I was 20 weeks including my mother because I felt too young and ashamed. Now being married and almost 30 I'm ready to let the world know. Do you think we should wait?! Valentine's Day is suppose to be the day and our mothers are itching to let their friends know. 
Ps due 9-1