That's definitely true in this story, but is this general statement true? > the woman needs to know she's pregnant before her habits change. There are always

That's definitely true in this story, but is this general statement true? > the woman needs to know she's pregnant before her habits change. There are always stories of people who don't realise they're pregnant, do their habits change in a reasonably identifiable way? This wasn't particularly relevant to the point, I just wondered and thought it was an interesting question.