Coin and Conformity
A man wakes up one day to find that he isn't in his apartment, isn't in his own body, and isn't even on Earth anymore. The language, the geography, the culture, the stars, and even the technology level are all different. Even worse, in this backwards medieval society he had found himself in, he woke up in the body of a woman. A woman who had just given birth to her first child, a son.
He's not really cut out for this whole 'motherhood' thing. It could be worse; at least he's a noblewoman, and really, Robb is such a sweet child...