[alianda]

Here's the thing I don't understand about Shettles. Which sperm get there first if I BD mulitple days - the oldest sperm or the newest? If I BD on say days 5, 4, and 3 before ovulation and then on ovulation day, wouldn't the sperm from day 5 (before O) already be in there and therefore be closer and fertilize the egg first, making it more likely to be a girl? Or does the fact that O day was included mean it is more likely to be a boy? I would reaaaaalllly appreciate any help. Thanks.

[shell1981]

The boy sperm swim faster and are lighter, so would get there quicker. Dtd on lots of days makes it more likely you will get a girl. So for a boy you should just get your partner to release once a few days before dtd and then just bd on O day.