Dr Shettles states for boy have s*x 24 hrs before or max 12 hrs after ovulation...why not after 12 hrs?

Question

Does it result in not conceiving or having a girl?

Answer 1

According to the Shettles theory, sperm carrying Y chromosomes, move faster and live a shorter period of time than sperm carrying X chromosomes.  He suggests having s*x as close as possible to ovulation so that the "boy" sperm have a better chance in the race.  

The reason to stop after 12 hours is that the unfertilized egg will most likely die before the sperm reach it.  Although, IMHO, if you missed the 12 hour window, why not try anyway?  Try to have some fun while you are at it!

Good luck!

Answer 2

What a load of Twaddle.

It's the genetic make up of the sperm that decides(all eggs are the same), when you have s*x will make absolutely no difference at all. And as thats the mans side of it, when you ovulate will not effect him in the slightest.

Answer 3

I think not conceiving at all.  

I think for a girl you have s*x more than 24 hours before ovulation because although boy spermies swim faster, they don't live as long as the girlies do...

Answer 4

Actually, the sperm is what determines what gender the baby will be. Male sperm swim faster, but die sooner so if you have s*x and the egg is there and waiting then the male sperm are more likely to fertilize it. The female sperm swim slower and live longer so if you have s*x and have not released a egg yet, the female sperm can live long enough to fertilize egg.  As far as conceiving its just the luck of the draw a egg can be fertilized but never implant.  I'm not sure how long a egg will live after being released but I want to say its a couple of days.

Answer 5

Who is this Dr. Shettles telling boys to have s*x?

Answer 6

The egg only has a very short lifetime. If you wait to long to have s*x, you risk missing it altogether.  

Answer 7

Could be a chemical thing that goes on with the egg or a hormone thing