I'm with Traveller on lots of points. This is our 1st Bub & I was/ still am nervous on every little thing & even thru we had our 1st scan yesterday - I'm still checking to see if its all a dream & my period will still come!
I wanted to keep it quiet for as log as possible but due to bad all day sickenes I ended up telling work very early. I had a hard time from my other in law about telling people early in case we miscarried however as much I didnt tell the world I still think you should share with those you feel most comfortable - who if heaven forbidden soemthing happens they will also provide support :-)
Best of luck Congrads!!