I'm over 13 weeks now and wayyyy to excited not to tell people the good news! My whole family knows…

I'm over 13 weeks now and wayyyy to excited not to tell people the good news! My whole family knows already but I'm nervous to tell anyone because I haven't even had my first ultrasound yet... I don't know I'm scared they'll do it and not find a heart beat or I wouldn't have "really" been pregnant.. I'm just kinda freaking out here