gingerb: Found this if it is any help.........
While testosterone is the sex hormone most often associated with aggression, lust, and masculinity, women produce the hormone too, but at much lower levels. In women the effects of testosterone are increased energy and blood flow – ensuring that nipples and clitoris are sensitive to sexual pleasure – and heightened libido, while estrogen serves to heighten sensation in general.
Testosterone in women peaks twice during the month: mid-cycle (around ovulation) and premenstrually (right before the start of your period). Several studies have suggested that a woman's vision and sense of smell are heightened at ovulation. And, anecdotally, many women report an inordinately high drive and orgasmic capacity at these times, describing pre-menstrual and menstrual sex as rawer, more urgent, and more primal.
Gabrielle Lichterman, author of 28 Days: What Your Cycle Reveals about Your Love Life, Moods, and Potential, outlines the perfect, and not so perfect, days for bedroom fun in her "Hormonology Guide to Sex" (hormonology DOT info):
There you go boys!You know what to do.