wrote:


When I've asked my friends about this, the only ones with 28-day
cycles were on the Pill.


I've always had very regular cycles, 27 to 29 days. In fact I've gone months at
a time with my periods always falling on the same day of the week. Among my
female friends (those with whom I've discussed the subject, anyway), I'm the
only one I can think of who has never used hormonal birth control, though I do
have a friend who tried the pill and promptly quit on finding she got nasty
side effects.

--Helen