Telling the boss?

Looking for advice on telling my boss I am expecting. The kicker is I have a new job that I start a week from tomorrow (the 11th). I'll be 10 weeks when I start and would like to wait a few weeks before I talk with him. I work in a high level, professional field. Anyone have experiences they are willing to share? Things that worked and things that didn't? 
PS - first trimester has been pretty easy, so I'm not too worried about having obvious symptoms. Thanks!

Glow Resources

Let’s Glow

Glow is here for you on your path to pregnancy

Glow helps you navigate your fertility journey with smart tools, personalized insights, and guidance from medical experts who understand what matters most.

25+ million

Users

4.8 stars

200k+ app ratings

20+

Medical advisors