Okay so we know all about the dangers of assuming a woman is pregnant when she isn't. In fact, it's best not to ask a woman if she's pregnant unless you can actually see a baby emerging from her at that very moment.
But no one ever warned me about the equal danger of knowing a woman is pregnant and pointing said fact out to the brother-in-law of the woman in question. Apparently, it's especially bad when the woman is your boss, and the brother-in-law turns out to be the father, and the husband hasn't got a clue.