"Something about the chemistry involved in werewolf conception made it impossible for girl embryos to survive the first trimester unless they were half of a set of twins and had a brother to mask their presence in the womb." Bullshit. Let's just say it outright: you want to keep the Werewolf Boy Club and keep your Super Speshul Snowflake "super speshul". I'm not buying this pseudoscience. I'm honestly sick of all the werewolf lore that goes out of its way to explain how rare it is for females to be werwolves - and do so badly.