Is babys gender hereditary?

[Msd2416]

Anyone know if this is a thing? Im convinced its not and its just 50/50 but my hubby says it is?

Do you know what hereditary means?

I think the Op means if the mother has 5 brothers is it more likely she will have a son... That kind of thing

It’s not 50/50.

Men have a genetic tendency to either produce boys or girls - so a man who has a lot of brothers is more likely to have sons.

See here www.sciencedaily.com/releases/2008/12/081211121835.htm

So your husband is right.

Yes @FindaPenny thats obviously what i meant :)

@AuntieAvocado Thanks for that i hadnt a clue ha! So interesting x

The sex of a baby is determined by the sperm and is pretty much down to luck. I think there are certain things that can sway the sex slightly but it's pretty much just random.

I am guessing you mean something like a scenario that there have only been one sex of baby born into a family for a long period of time? I'm pretty sure it is just chance. Dfriend's DH's family have only had boys born for something like the last four generations with all the female partners have married into the family - Dfriend's just given birth to a girl (after they choose not to find out the sex in advance) so understandably everyone has lost their minds a little bit over it which is lovely but i don't think there is any science about certain families only making one sex for any other reason than 'chance'

I've heard that pilots usually have girls but I don't know why...

I wouldn't say gender is hereditary, but sex is definitively so! You can have a higher likelihood of having boys/girls if your husband's family is particularly rich in one or the other, too.

Interestingly, fighter pilots are way more likely to have daughters (so I hear); something to do with all the weaker male sperm crumbling under the G-forces pilots are subjected to!

Our DD was the first girl in my DH family in 4 generations. Whilst my family were filled with girls. I always thought the gender was determined by the mans sperm.
Still think it's the luck of the draw. As now we have 3 DGDs and 2 DGSS.

I always thought the gender was determined by the mans sperm.

It is.

No the sex is.

Baby’s gender is down to which sperm gets there first. What the bloke eats and how well he um performs can effect which swimmers get there first. How close the egg is to sperm and readiness will also effect. So fit healthy swimmers and a cracking orgasm when eggs ripe and waiting should in theory mean a boy.

A few days until eggs ready, longer distance to travel etc should in theory be a girl.

Before our eldest was born I was hearing that DH's family had only had boys for a long time. A pleasant surprise when she was born :) (also was first grandchild on both sides). But thinking about it, we have one girl, one boy; and my b-in-law now has 3 boys.

We thought that this was the case too - there are way more boys than girls in DH's family and he had all boys. Fascinating to see there is science behind it.

I am one of 3 girls. Between us we have 6 boys and 1 girl. DH has a sister, DBIL 1 has a sister and DB 2 is an OC...

I think people can try and do studies and find patterns but at the end of the day, there are only two possible genders so finding patterns to support any one theory isn't exactly difficult. I still think it's just random.

My dad is one of 8 brothers, and yet I am one of his 4 girls :-D

So fit healthy swimmers and a cracking orgasm when eggs ripe and waiting should in theory mean a boy.

No, it doesn't. The idea that there are "male" and "female" sperm that behave differently is based on the entirely mistaken observations of Shettles. Men can have a slight proclivity to produce either sons or daughters but it doesn't depend on those factors.

My fertility clinic said there is not enough research in this field, but that some men (in the case of unexplained infertility) may have inherited sperm disorders that might make them produce better quality x or y sperm. He also noted that some women are more likely to miscarry one gender or another. However it’s all conjecture until there is solid research in this space.

It's sex, people. There are only two sexes. Gender is something quite different.

A baby's sex is determined by the sperm which reaches and fertilises the egg first.

A man's sperm has either XY or XX. if XY meets the egg first, it will be a boy. If it is XX it is a girl.

The sex of the foetus is determined at conception by the sperm.

"A baby's sex is determined by the sperm which reaches and fertilises the egg first.

A man's sperm has either XY or XX. if XY meets the egg first, it will be a boy. If it is XX it is a girl.

The sex of the foetus is determined at conception by the sperm."

Well, yes.................................

I think the discussion here / in research is more about whether, e.g. a man is more likely to have more XX or XY sperm, or whether it's more likely that the XX or XY sperm will fertilise the egg, etc..

Research shows that you are slightly more likely to create boy sperm but that it's weaker. In developed countries, young parents especially are more likely to have boys. In developing countries there are often more girls born as they surive the harsh fetal conditions of poverty :(

@shazchip interesting point

I had 3 girls with my ex, DP has 3 boys and we are now having another boy- he insists he can only have boys. We shall see after he comes back from pilot school