i think at that time you would be condemned for pre-marital pregnancy, especially if you are a female guard
Hmmm, it's more that it means she acknowledged that she spent time with someone at that night which coincides with the fact that the emperor had done the same thus giving him some excuses to do all kind of things openly. And he's not known for being benevolent.
Normally, best case she'll get kicked out of the force, worst; execution for various reasons.
Well it doesn't have to be THAT night either, nothing's precise even in our modern world
Why doesn't she just say that she slept with other men and got pregnant from them....