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August 2011 Moms
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Wash-- I'm not crazy! lol

countrywedcountrywed member
in August 2011 Moms

haha, not that you were calling me crazy, but I decided to look into my theory from jnk's post.

For those who don't want to go back.  I asked about jnk's DH's siblings and brothers children in her gender guess post.   This is because I believe that when a male has all male sons, and a couple of his sons has only sons,  it is likely his other sons will have mostly/only sons. (not 100% IMO just better than 50%).  Well since Wash wanted to know why I was asking about siblings and nieces/nephews, I decided to google my thoughts to see if any reseach had been done on it.

 Here is what I found. I think it has some cool thinkings/theorys on baby gender trends.

https://www.ncl.ac.uk/press.office/press.release/item/boy-or-girl-it-s-in-the-father-s-genes

Disclaimer:  As I wrote this is just a theory and I don't believe it to be 100%

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Re: Wash-- I'm not crazy! lol

  • Monsieur_et_Madame_HaMonsieur_et_Madame_Ha member
    Butting in. Well, considering that a baby's sex is determined by the father (since the mother only has X chromosomes to give) I think your theory makes sense. I just have no scientific evidence to back it up.
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  • WashingtonQueenWashingtonQueen member

    I learned a lot while TTC. Men's sperm can have a slight variance off of the 50/50 but no more than 52/48. The very slight difference combined with the right timing, I think can give the illusion of boy heavy or girl heavy. But bottom line, genetics have nothing to do with which sperm gets to the egg first. Smile

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  • countrywedcountrywed member
    imageWashingtonQueen:

    I learned a lot while TTC. Men's sperm can have a slight variance off of the 50/50 but no more than 52/48. The very slight difference combined with the right timing, I think can give the illusion of boy heavy or girl heavy. But bottom line, genetics have nothing to do with which sperm gets to the egg first. Smile

    I am a proof person --- what research proves that male sperm is no more than 52/48.

     I know there is some research backing up the timing of sex with sperm life.

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  • bsinnobsinno member
    I'm reading "do chocolate lovers have sweeter babies?" and the author discusses some really interesting studies about eggs actually favoring X or Y sperm more than the other. 
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  • WashingtonQueenWashingtonQueen member
    imagecountrywed:
    imageWashingtonQueen:

    I learned a lot while TTC. Men's sperm can have a slight variance off of the 50/50 but no more than 52/48. The very slight difference combined with the right timing, I think can give the illusion of boy heavy or girl heavy. But bottom line, genetics have nothing to do with which sperm gets to the egg first. Smile

    I am a proof person --- what research proves that male sperm is no more than 52/48.

     I know there is some research backing up the timing of sex with sperm life.

    I am trying to remember which book I have that says there can be slight variation, it is the only thing I have read that slightly supports your idea. Other than that one, every other thing says it is straight up 50/50.

    Here is one article from a gender selection and fertility clinic that has just about all the information I have seen everywhere else put together.

    https://mygenderselection.com/origins-pseudoscience/xx-vs-xy-the-biology-of-gender/

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