Laura,
au contraire, estrogen, even in men, has an impact on libido.
Men with low level of estrogen in the brain (because they do not aromatise in properly from T, will have a lower libido).
Female libido changes with the level of estrogen so they will receptive when fertile.
We are the same as with animals.
At menopause you'll notice that women lose sexual interest,
what they lose then is mainly estrogen, not testosterone from the adrenals.
(some women have a low T level from adrenals and that will also impact libido).
A study showed (by filming women who were asked to regularly come in for an experiment, without telling the exact esperiment), that women wore more accessories and makeup when their level of estrogen is higher.
Also, women seek out more rugged men when estrogen levels are high and have a tendency to be more promiscious (if they are inclined to do so) during those periods.