Nervous to tell

Kay
Is anyone else nervous to tell? I will be 20 weeks Friday and I am nervous to announce to everyone I am pregnant I have had perfect results so far but I miscarried before. The last appointment was perfect the baby was perfect and the babies heart rate was 167. I am just nervous does anyone else feel this way? 
I am already starting to show so I feel I will need to tell soon. My immediately family the grandparents to be and aunts and uncles to be. 
I was thinking about announcing on Father's Day and now that it is getting closer i am just feeling like ehhhh idk. My husband is about to burst but I don't want to announce and something go wrong. :/ 
Tips please