Noah Fenton does not understand women; he flails before them and knows too well the taste of his ankle from sticking his foot so far in his mouth. But just when twenty-seven-year-old Noah is about to give up on the fairer sex for good his perspective is forever changed. During a debaucherous night in Mexico, Noah is seduced and bitten by a werewoman, or a woman who is really a man when the moon is not full. Ever after, he turns into a beautiful woman once a month with the full moon. The transformation terrifies him at first, but he's also fascinated by the chance to walk a mile in stilettos.
Inspired by the werewolf myth, Werewoman explores how men and women deal with the ever-shifting balance of power between the sexes. Just as Noahs private life is thrown into upheaval, he also faces a professional crisis. After a pompous reporter at the newspaper where he works steals a story he's been chasing for months, Noah erupts in anger at his editor and is unjustly fired. Sexual misconduct and treachery figure into his plot to use his female body to avenge his firing. But when he is nearly raped in the course of his plan, Noah learns first-hand the shocking vulnerability of women. With his journey just beginning, Noah must find the common ground between the sexes, as well as the courage to tell his family and friends about his peculiar new situation.
This is actually an interesting idea but you've gotten trapped in chronology. Focus on the key event: Noah goes to Mexico and comes home in high heels. We don't need chapter and verse on what happens next. Werewolves only "turn" during a full moon. Is Noah going alternating between wearing a cocktail dress and a beer helmet?
And you'll want to read Self Made Man by Norah Vincent. It's a good book on it's own, but she's got some amazing insights on this topic.