This article is from the Choosing Your Baby's Sex FAQ, by Roger A. Hunt email@example.com with numerous contributions by others.
For a long time now (tens of thousands of years would
be my guess), people have wanted to know if it's
possible to influence the sex of a baby before
conception. Just as it's natural that the first
question your family and friends ask upon hearing
about a new baby is often "Boy or girl?" -- it's also
natural that you and/or your partner would wonder
"How can we influence whether the baby we conceive is
a boy or a girl?"
This FAQ is an attempt at answering this basic
question. Based on the sources in section 1.3 below,
there is some evidence that you can alter the odds.
Instead of a near-50/50 "roll of the dice," you may
be able to increase the odds in favor of conceiving
either a girl or a boy to as high as 80 percent, or
as low as 50.0001 percent (depending on whom you
believe, as outlined below.)
BIG FAT WARNING, though: Scientific tests,
other than those of Shettles himself and his
associates, do not at this point establish that
the Shettles methods (or any others) are valid.
In fact, there are purportedly studies showing
that trying the Shettles techniques may increase
your odds of conceiving the OTHER sex! -- though
finding these studies seems to be an elusive
task. In any event, be forewarned.