Other baby gender selection theories
Since civilisation began, there has been many theories mostly non biological, such as specific sexual positions. People who use methods explained or provided only from books on gender selection do not register so no one can work out any success rates among their readers.
There are also hundreds of internet services that include e-books or infomercials covering a mix of all the ideas on gender selection on the premise that if you are able to follow them all you should have 100% success! In 1998 there was only Shettles, Ericsson and Babychoice/Selnas, nothing new has come up except hundreds of web sites giving general information, adding an ovulation calendar that can be used for the timing/Shettles method, fertility kits and associated services.
Chinese conception calendar and similar charts can be checked with past babies of your friends - our checks have proved negative. Chinese companies are now offering reliable Western biologically based services. If only the Chinese calendar worked, there would not have been so many girl abortions in China.
Doctor Jonas Method. In 1998 a couple of months after we produced our web site, Dr Jonas, who was involved in fertility predictions from Australia, suddenly added a gender selection service with the same test results as ourselves quoting "thousands" of past successes! Offering a valid service is good for everyone but for the first year Dr Jonas could not even explain the basis of his method either on the web site or by e mail and telephone enquiries.
Lately his successors have explained their method or scientific base as : "Dr. Jonas has discovered that under certain circumstances the bio-chemical environment of the endometrium is subject to certain periodic variations and that these in turn lead to sedimentation of the sperm. You can look up the word endometrium::"it is the blood-rich mucus membrane lining the uterus (which is usually shed during your period). The embryo implants into this lining, and takes early nourishment from it". The endometrium is therefore only a home to the already fertised egg.! So even if the bio chemical variations were able to be predetermined they would only apply after the fertilisation of the Embryo. Ie after the gender selection process has been completed by nature. The word "sedimentation" of a living sperm is used in the wrong context.
I will be happy
to discuss my personal views on gender selection with you apart, of course,
from repeating the above information. Just e-mail
me.
All the best!