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However, this study suggests that some of those same forces of nature may also affect the sexual behavior of men and women.
Researchers found sexual intercourse peaked just before and on the day of ovulation among this group of women, even though they did not wish to become pregnant.
Previous research has shown that the five days leading up to ovulation and the day of ovulation are the days in a woman's menstrual cycle when she is most fertile.
“I don’t like to tell people how we met,” she says of her fiancé.
In the study, researchers examined patterns of sexual activity in relationship to ovulation.