Totally agreed. My colleague and myself both experienced it. When I was pregnant the first time, I told my friends around 1.5 months, soon, 就冇左啦...我同事一樣, from medical view, its not so secure before 3 months (around 12 weeks), so better announce it after 3 months...
I told everybody in my office.. since I got a really bad news last week.. then visited other dr and did some more check up.. so everyone knows =P
but I think.. may be I am lucky..
I got my promotion (as told in July) starting from sept. my boss is 2-kid's mom.. she thinks it's the work attitude that's matter. Heh.. but I feel so tired recently.. and cant really concentrate =P