As far as a test is concerned, unless you are using a fertility specialist there are NO tests. However I have 3 boys and a baby on the way (which we hope is a girl) and I have done a TON of research. What I have come up with in my research is a doctor named Dr Shettles. He is the leading non invasive fertility specialist. (He has dedicated his life to helping women take control of their fertility.) He by no means guarentees his methods, but he has had an 85% success rate. His book is called "How to Choose the Sex of Your Baby"
This site gives an overview of what to expect in his book:
http://babyzone.com/features/content/display.asp?ContentID=1640
The Shettles Method
This method of gender selection has been around since the 1960s. Dr. Landrum Shettles, author of How to Choose the Sex of Your Baby, recommends methods of gender selection most upheld by scientific evidence and without costly or controversial medical procedures.
The right time
The Shettles method believes that the closer to ovulation you have sex the more likely it is that you will have a boy. However, if you have sex two or three days prior to the egg being released, you have a better chance of having a girl. Basically, if you have intercourse right at or near ovulation then the Y sperm will make it to the egg quickly and you have a boy, whereas if the sperm is released two or three days before the egg, the Y sperm will die off and there will be more X sperm left waiting for the egg to appear and fertilization will most likely result in a girl.
Vaginal pH
The pH of a woman's vagina is also very important. An acidic environment favors girls, since it will kill the weaker male sperm first and leave a greater number of X sperm to fertilize the egg. So, if you are trying for a boy, a good time for intercourse is when the vaginal balance changes to alkaline—on the day you ovulate—otherwise the male sperm will either slow down or die in an acidic environment.
Sexual position
Position of intercourse and depth of penetration are also important, partly because of pH. The closer to the entrance of the vagina, the more acidic the woman's tract is. Deep penetration places the sperm closer to the egg and gives the faster male sperm a head start. Shettles recommends the missionary position for girls and deeper penetration positions such as rear entry for conceiving boys.
Sperm count
Obviously a low sperm count to begin with doesn't favor either sex, but a high sperm count favors boys. Shettles recommends that when trying for a boy, the man wear loose underwear because the testicles need cooler temperatures for sperm to survive and thus the weaker Y (male) sperm will benefit from this more than the stronger X (female) sperm. For a girl, it is suggested that the man have a hot bath immediately before intercourse to give the X (female) sperm an advantage (by killing off the weaker male sperm).
Food for thought
It is thought that minerals in your diet affect the metabolism and environment of the egg and therefore make it more attractive to sperm of one particular sex. If you want a boy, eat plenty of potassium-rich foods such as meat, bananas, apricots, and celery. If you want a girl, lots of magnesium-rich foods such as nuts, soya beans, and leafy green vegetables should do the trick.
2006-06-09 09:04:46
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answer #1
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answered by Just me.... 4
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A man can produce boty boys or girls, there is no way they generate just X or Y chromosome sperm. It is all a game of chance. Yea, the test to see which you produce is called pregnancy, and you go through it for 9 months and then find out for sure that you created a boy or girl.
2006-06-09 08:34:32
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answer #2
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answered by Anonymous
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The male's sperm is what determines the sex of a child. Sperm are either male or female. The woman's eggs are only female. Female sperm have been found to be stronger and swim longer, so the farther a sperm has to swim, the more likely it is to be a girl. I don't think its possible for a person to not produce a boy or a girl.
2006-06-09 08:38:09
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answer #3
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answered by smartypants909 7
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It would have to be a DNA test of some sort. If you are a carrier of certain sex-linked diseases like Duchene's Muscular Dystrophy or hemophilia, you could pass these to your boys. But they are not fatal at birth.
Or, if you have a genetic anomaly (a man who produces only X sperm for example) that could cause only girls to be produced.
2006-06-09 08:38:03
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answer #4
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answered by Anonymous
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Not sure the test. But the deciding factor is in the sperm. It would be some sort of semen analysis.
2006-06-09 08:34:55
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answer #5
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answered by wordnerd27x 4
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no, the chromosomes sort independently, sex is determined by what the male contributes, either an x or a y chromosome. you could however have the lab mix the stuff up and then implant the desired sex.
2006-06-09 08:34:55
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answer #6
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answered by sparkydog_1372 6
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