Announcing.. Getting cold feet

I have an appt to hear the heart beat on April 7th . I'll be 13 weeks this Sunday April 10th... I've told my whole family and my husbands whole family and 2 friends.... My husband and I work together at a huge retail store so as soon as the cats out of the bag it'll be huge... I don't know why I'm getting cold feet because I'm so excited!! Anyone else nervous to tell the world! Ps when are you telling social medias?!