All women emit a siren song and the intensity of their call increases along an evolutionarily prudent scale. Therefore, in spite of my aforementioned exasperating behaviors, that peak at mid-menstrual cycle, so does my husband's amorous behavior and exclamations as to my allure. For years I have known that he knows when I ovulate. But he doesn't know that I know. Recent research has confirmed my observation.
Men do respond physiologically to women when they ovulate.
Astrid Jutte at the Ludwig Boltzmann Institute for Urban Ethology in Vienna confirmed the physiological changes with the following experiment. Three groups of men were asked to inhale one of three synthetically produced human copulins-fatty acids found in vaginal secretions in women at various times during the menstrual cycle. One of the copulins mimicked ovulation, one menstruation and the third another point in the cycle. The fourth group of men inhaled only water vapor. And of course, these physiological changes often influence men's behavior.