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Original poster

Sounds mad but it’s true, honest! If you have 3 kids…

429 replies

Nunaluna · 07/05/2025 20:00

Same dad, no miscarriages to ‘break the chain’, if the first 2 are opposite sex, the third will be whatever number 2 was - so BGG, or GBB. Not BGB, or GBG.

It sounds crazy but it’s something I noticed ages ago - every time somebody announces they’re having a third, and they have one of each, I know it will be the same as the second child.

Prove me wrong, Mumsnetters!

OP posts:
CatHairEveryWhereNow · 08/05/2025 18:25

No.

I have DD1, DS and DD2.

Though family I was born in was DS DD1 DD2 - which made room sharing easier.

Luckily we ended up in a 4 bed before they hit teen years.

SwanOfThoseThings · 08/05/2025 18:19

The only example I can think of (I do know people with three children but I can't remember their sexes) is William and Catherine Wales - doesn't work for them!

Momager12345 · 08/05/2025 18:19

I have BGB

Drivingmecrazydizzy · 08/05/2025 18:16

I had BBBBBBG

Etaerio · 08/05/2025 18:12

TipsyRaven247 · 08/05/2025 09:43

It would not say "haters". But it is worrying that our society and education systems produce individuals like you who are completely devoid of any common sense and mathematical intuition. And you come here throwing messages like "prove me wrong Mumsnetters" like you are in some sort of higher intellectual pedestal, which obviously rubs people the wrong way because you are displaying traits of both arrogance and ignorance.
Even someone who has not had any formal exposure to the field of Probability should have the sense to realise that the events that you are describing are independent and therefore there is no connection between the genders of siblings.
Each child’s gender is determined independently at conception, with roughly a 50/50 chance (slightly skewed male in most populations). A quick Google search would have debunked you bonkers theory.

Show quote history

But there is evidence that the sex of births is not independent of previous births, as has been shown in a paper linked twice in this thread. It is worrying that our society and education systems produce individuals like you who are completely devoid of any empirical curiosity or statistical intuition. And you come here throwing messages like "Even someone who has not had any formal exposure to the field of Probability should have the sense to realise ..." like you are on some sort of higher intellectual pedestal, which obviously rubs people the wrong way because you are displaying traits of both arrogance and ignorance.

Stresshead84x · 08/05/2025 18:11

I have gbb, my mum had bgg and my mil had bbg so works for us haha

Bugaloo77 · 08/05/2025 18:11

I have GBG so it doesn’t work out for me

Bibbitybobbity70 · 08/05/2025 18:11

BBG here

heatherwithapee · 08/05/2025 18:11

Not always true. My friends with 3 DCs have:

GGB
BBG
BGG
GGB
GBG

BumbleGee · 08/05/2025 18:10

Not true. Same Dad - no miscarriages. I have BGB.

Mere1 · 08/05/2025 18:10

Nunaluna · 07/05/2025 20:00

Same dad, no miscarriages to ‘break the chain’, if the first 2 are opposite sex, the third will be whatever number 2 was - so BGG, or GBB. Not BGB, or GBG.

It sounds crazy but it’s something I noticed ages ago - every time somebody announces they’re having a third, and they have one of each, I know it will be the same as the second child.

Prove me wrong, Mumsnetters!

Wrong. Three friends have gbg

Mumof4321 · 08/05/2025 18:10

Nope. I have 4 kids to same dad. No miscarriages etc too and had GBGB 😊

grumblebutt · 08/05/2025 18:08

It’s 50/50 every time 😂

Glow23 · 08/05/2025 18:08

I have girl boy girl :)

egoodman63 · 08/05/2025 18:04

I have 5, all the same dad, GGBBG

Julia001 · 08/05/2025 18:02

Not true , my mum had GGB

DaringlyDizzy · 08/05/2025 18:02

My Dad and his siblings are GBGBGGBB

Lovemeapickledgherkin · 08/05/2025 18:01

Not true- I had boy girl boy!

hadenoughofsnowflakes · 08/05/2025 18:01

Nope - boy, girl, boy then girl

Purdycat82 · 08/05/2025 18:01

Your theory works with my family.

I have GBB
my sister has BGG
my other sister also has BGG

Didshejustsaythatoutloud · 08/05/2025 18:00

YouRemindMe0fTheBabe · 07/05/2025 20:02

Sorry not true. My friend from antenatal class has BGB.

Yep, same in my family

pineapplesundae · 08/05/2025 17:55

I'd say you don't know enough people to prove yourself right.

itsgettingweird · 08/05/2025 17:55

In fact (large family) we have

GGGGGBB

of those we have

BBBG
GGB
GG
GGBG
BG
GB

No one further down has more than 2 children except a cousin who’s on his 2nd marriage and has GGG.

the next generation actually only has 2 families where there is 2 children of opposite sex.

Everyone else has 1 child or 2 of the same sex!

GiveDogBone · 08/05/2025 17:54

You need to look up “anecdotal fallacy”.

BigButtons · 08/05/2025 17:53

How ridiculous- bbgggb here