Thought this was pretty neat.

3. Women Are More Likely to Cheat When Ovulating

Along similar lines, we could expect that women are more likely to cheat when they are ovulating. Science confirms:

“We found that women were most attracted to men other than their primary partner when they were in the high fertility phase of the menstrual cycle,” said Dr. Martie Haselton, a UCLA researcher. “That’s the day of ovulation and several days beforehand.” –(Source)

Put another way:

Women who are in relationships exhibit the most extreme spike in interest for masculine men around ovulation. The shift is even more exaggerated when they’re not happy with their current partners, said Kristina Durante, a social psychologist at the University of Minnesota, Twin Cities. –(Source)
From: http://www.thesuperredneck.com/seven...out-ovulation/