The other thing is, I would try not to always follow up the news about my BFP with a caveat that something could go wrong. People know that already, and the only people we told early were people who had been well aware of our TTC journey and would be our support network if we were to miscarry. So my parents, sister, and BFF found out a day or two after my BFP, before I'd even missed a period. DW told her parents later that week. We told a few more friends after the 8-week viability u/s, and then a general Facebook announcement (nothing clever) after the end if the first tri.
I have very few regrets about how and when we told people. The only one that was weird I guess was my boss. He knew we had been trying, which I don't necessarily regret telling him (we've worked together a long time), except that we just happened to take a business trip together right after my missed period. He noticed that I wasn't drinking wine at dinner, which is very unusual for me, and so he guessed. I had a few HUGE projects at work this year, and so I wound up needing to have the conversation about when to tell the other executives WAY sooner than I would have wanted. That was uncomfortable, but again, I'm not really sure what I would have done differently in hindsight.