It's different for all women and it is this that men must realize and it can be different for the same woman at different times.
Well said, Whirlygig, and not said often enough.
I have honestly never had a problem with it. Or, at any rate, less of a problem than with the normal ups and downs of life that can make you feel better some days than others, and can easily be ignored. I know I'm fairly lucky in this respect, but I also know I'm very, very far from unique.