I don't know Frank. I was reading an article the other day that claimed men have periods, too.
Of course men have "that time of the month" every month.....just like women do.
Our moods vary, going up-and-down, just like women's do.
What I can't figure out is why women get all the sympathy for theirs, while we don't; the misery's pretty even.
But having a "period" and an opportunity to get pregnant are two different things.