My HormonologyBad news for men who have feminine-looking features, like a soft jawline, big eyes and thin eyebrows (this means you Justin Bieber and Leonardo DiCaprio). Turns out, women with male partners who have softer facial characteristics are more likely to fantasize about masculine-looking men during Week 2 of their cycle (which starts 8 days from the onset of your period) than women attached to burly-looking dudes, reveals a just-released study in the journal Evolution and Human Behavior. Why? High estrogen is pushing you to find a mate with a high testosterone level—which is a key indicator of health and virility—to fertilize your egg during ovulation, which occurs at the end of Week 2. And a strong jawline, small eyes and thick eyebrows are all indicators of a high amount of this hormone.