very nice. It would amuse me if it took Severus a month or so to come up with an antidote, which he couldn't give to Harry right away because it would work and Harry, being pregnant, does not want to risk the baby.
It would also amuse me if, instead of Harry becoming preggers as a female, that the antidote works, Harry reverts to male and Sev decides to see what being female for a day or so is like and, well, Harry knocks girl!sev up.
I'm admittedly weird though.
p.s. I don't think I've ever seen a Snarry Severus is turned into a woman fic. Perhaps I'm the only one who thinks such a fic would be cool.