Anyone have stories of announcing their pregnancy to their male boss?

I'm telling my boss between June 20th and June 24th that I am pregnant. That will be my 18th week.

Ideally, I'd have been telling him between July 5th to 8th because our anatomy ultrasound is June 30th, right before the long weekend (Canada Day) that way we would know that everything IS going fine. But the day bloat is starting to get pretty bad and I'm already having to keep my slowly protruding tiny tummy discrete.

Anyways, I'm nervous about how he may react and I'm nervous about announcing before we see baby again (had complication during a previous pregnancy that were discovered during our anatomy scan that resulted in us losing baby at 22 weeks...) So basically, I'm hoping for the best on both accounts and looking to hear stories from other women who announced to their male bosses and how it went... Good, bad, awkward?