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NovemberMum 
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 Topic: random thinking
Posted: 22 December 2010 at 4:10pm |
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so you hear of couples where they have all boys or all girls eg 5 boys or 4 girls etc.
and yets despite trying all the so called methods to get a particular gender they always end up with the same gender.
so I am wonder if it is possible that a man could carry mostly X sperm or Y sperm. so that no matter which method they try they will always get the same gender
anywy thats just my random thought for the day
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MyLilSquishy
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Posted: 22 December 2010 at 4:43pm |
interesting thought!
ive heard about some 'study' done... where it tends to be the woman that determines boy/girl.... a 'dominant and assertive (they said bossy) woman' is more likely to have male children as the testosterone in the sperm with the testerone released in the egg by the dominant woman will likely create a male. whereas a timid/shy/less assertive woman is more likely to have a girl (something about evolution and men wearing the pants)
which i think is a whole load of BS. but then again i am a dominant, assertive (sometimes bossy  ) woman with a boy hehe
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NovemberMum
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Posted: 22 December 2010 at 5:00pm |
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lol wonder what that makes mums with one of each?
a shy dominant woman?
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amme_eilyk
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Posted: 22 December 2010 at 5:09pm |
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I dont believe in the woman determining the sex. Guys have a 50/50 mix of X and Y sperm as sperm are basically 1/2 of a normal cell, so from each sex cell you get 1 X and 1 Y. You have a 50% chance of having a girl/boy per pregnancy so if you have four kids there is a 6% chance of having all girls or all boys assuming that there is no genetic problems. It is possible if the female has problems with one or both of her X chromosomes that boys are not viable since they dont have the back up X that girls have. Which can reduce the chance of a boy to about 12.5%.
(can you tell i'm majoring in genetics lol)
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AandCsmum
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Posted: 22 December 2010 at 5:15pm |
LMAO I'm not shy & I had a girl first! I put it all down to timing...girl "She'll be right" (obviously not lol) boy - try & try & try again on specific dates each month.
Very interesting kylie 
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Kel
A = 01.02.04 & C = 16.01.09 & G = 30.03.12
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Nutella
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Posted: 22 December 2010 at 5:45pm |
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Interesting, I do sometimes wonder with people that try for a sex how often it comes right for them.
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Plushie
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Posted: 22 December 2010 at 5:50pm |
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Isnt there something about boy sperm being slower and stronger and girl sperm being quicker so if you BD a few days before ovulation the boy sperm will be alive swimming onwards to get the egg but if you BD on the day of ovulation the girl sperm will beat the boy to the egg?
Or am i crazy? That sounds pretty crazy!
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TrinaL
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Posted: 22 December 2010 at 6:27pm |
Not sure how true this is but a guy at work told me ( and really it was TMI from a guy I one work with and 2 has kids my age  ) that when he was Lincoln Uni many many years ago and they were doing progeny testing on bulls as you do, they decided to test themselves. Anyway his was that he was unlikely to have daughters and he didn't just 3 boys.
It makes sense the testing on bulls and why they would do it so I suppose the same theory would work on humans and some men are predisposed to have only one gender.
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T_Rex
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Posted: 22 December 2010 at 7:06pm |
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Kylie, thats true in principal, however, the x-carrying and the y-carrying sperm are very slightly different - that's the basis for *drafting* them in the semen sexing machines they have for bulls (so you can order a boy or a girl calf when you inseminate your cows), so in the same way, they can respond differently to different uterine environments. That's the basis for many of the theories of influencing which gender you get.
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Plushie
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Posted: 22 December 2010 at 8:35pm |
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LOL at deciding to test himself!
Can you sex-select if you're doing IVF. Obviously not ethically and in reality but in theory?
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Whateversville
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Posted: 22 December 2010 at 8:46pm |
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I always thought that it was based on the father and he was from a family of mostly/all boys you'd most likey mirror it with your kids. So when I ot UTD to a guy with only brothers I figured from day dot it was a boy - and it was lol probably rubbish .. he's having another baby with some1 else now so will be interesting to see if they have a boy too lol
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High9
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Posted: 22 December 2010 at 9:08pm |
 amme_eilyk wrote:
I dont believe in the woman determining the sex. Guys have a 50/50 mix of X and Y sperm as sperm are basically 1/2 of a normal cell, so from each sex cell you get 1 X and 1 Y. You have a 50% chance of having a girl/boy per pregnancy so if you have four kids there is a 6% chance of having all girls or all boys assuming that there is no genetic problems. It is possible if the female has problems with one or both of her X chromosomes that boys are not viable since they dont have the back up X that girls have. Which can reduce the chance of a boy to about 12.5%.
(can you tell i'm majoring in genetics lol) |
This is what our science teacher told us in 7th for sci.
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_H_
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Posted: 22 December 2010 at 9:33pm |
bowie wrote:
LOL at deciding to test himself!
Can you sex-select if you're doing IVF. Obviously not ethically and in reality but in theory? |
I would be interested to know this as well but to be honest at this point i dont care!
Edited by _Waiting_
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lil_lease
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Posted: 22 December 2010 at 9:42pm |
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Technically I think you CAN sex-select via IVF as you can do other types of genetic testing once the embryo gets to the 8 cell stage (I think)
It would just be a case of taking one of the cells and DNA testing it to determine gender then implanting only embryos of the desired gender.
Ethically quite questionable ground.
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Antony, gone but never forgotten 2-4-2010
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Nothing
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Posted: 22 December 2010 at 10:10pm |
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I know someone who had a boy, then years later got together with another guy and went on to have 5 girls! She had quite a few miscarraiges in between the girls and the doctors reckon that her partner is not compatiable with her for making boys.
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High9
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Posted: 22 December 2010 at 10:12pm |
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DPs FIL side is mainly all boys, MIL 50/50 and my side is mostly girls.
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rorylex
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Posted: 22 December 2010 at 10:25pm |
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well DH has a girl from a previous relationship and together we have 4boys.
I think DH is the one wanting a girl more than i am.
we are planning to ttc evenually, but i have given up on trying for a girl, we didnt really do anything to "sway" for a girl with any of our boys.
but i have often thought about it myself. wondering if all these "methods" actually work.
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Mummy to 4 boys
Samuel - 18.6.05
Rory - 15.7.06
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Baby #5 - cooking
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mrsturtle
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Posted: 22 December 2010 at 10:41pm |
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Hmm this is interesting a friend and i have been discussing how to get the opposite sex she has 3 boys and i have 2 girls next time we have said we should just swap lol.
Im not sure many would discribe me as quiet/shy yet i only have girls.
Im just starting to read up on all the old wifes tales on how to help get a particular sex.
I have a friend who has 6 girls! but from 2 different fathers she just tells everyone she only makes girls.
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Ella1
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Posted: 22 December 2010 at 11:00pm |
Pillow_Fight wrote:
I always thought that it was based on the father and he was from a family of mostly/all boys you'd most likey mirror it with your kids. So when I ot UTD to a guy with only brothers I figured from day dot it was a boy - and it was lol probably rubbish .. he's having another baby with some1 else now so will be interesting to see if they have a boy too lol |
Sorry, but I don't think that theory is right.
My husband is from a family of only boys, and so is his dad. But we have a girl ....
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High9
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Posted: 22 December 2010 at 11:10pm |
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Rorylex, surely the next one should be a girl!!
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random thinking
Oct 11
