This is going to sound slightly silly, but before becoming pregnant myself - the fact that someone has had sex to get pregnant didn't really cross my mind - the two were sort of detached. If someone announced they were pregnant I wouldn't be thinking about them having sex, but I might be curious about what the thought process was about deciding was the right time to have kids if there was one, is human nature to be interested in the life of those around you - ok now I have BB where I can read all about peoples pregnancy and TTC journeys and read about peoples thought processes in deciding when is the best time for them to have a first, a second etc - but once upon a time there wasn't BB and you need to learn stuff from other people somehow.