Ah, I see. Well, then, maybe you should explain a little more in the first one. You say "if a pregnant woman doesn't want to talk about the birth . . ." If a woman is pregnant, then "the birth" hasn't happened yet. And you say "What happened may be . . . " yet there's no reason to believe anything has happened at all.
So, I guess I mean I'm confused - do you mean, a formerly-pregnant woman? Or a woman who you understood to be pregnant, but hasn't spoken about it and therefore it's possible she's somehow lost the pregnancy?
ETA: Re #15 - I'm not disagreeing with you at all, just saying that I don't mind being asked about childbirth and don't find it rude to be asked.