BBT temps and gender?

[vanasse2002]

Hi, everyone!
I thought I had seen this on here a while back, but I can't find any info on it. I'm just wondering if there are any studies relating the BBT temps to gender. It sort of makes sense that it could be related because when you think about some other animals, if eggs are kept at certain temps there tends to be more boys and other temps would make more girls.
What I'm wondering is if your normal BBT is lower (say under 97) would that mean more girls and a higher BBT mean more boys? I know that BBT is not something that we can change, but I also wonder for those that have been on either HE or LE diet and are temping, have you noticed a change in your pre-O BBT's.
Thanks for any info out there.

[kelly2017]

There was no change in my temp between genders x

[ksmom]

I didn't notice a change in temps while on LE and I was on it for a year. Just my cycles changed.

[vanasse2002]

Do you all mind sharing what your typically BBT is pre-O?

[ksmom]

Mine usually range from 97.1 to 98.2 pre-O

[Throwaway_panther]

According to the "other site," they assert it's actually the opposite of what you suggest -- lower temps = more boys. But there isn't evidence for any of this.

I caution your thinking that it "makes sense" because of egg temps -- we are not reptiles or birds. Our eggs are produced and nurtured in a completely different fashion. It's one thing to see things in studies on rats or apes -- and even then, they don't apply evenly to humans. It's a whole other thing to extrapolate across classes.

[atomic sagebrush]

According to the "other site," they assert it's actually the opposite of what you suggest -- lower temps = more boys. But there isn't evidence for any of this.

I caution your thinking that it "makes sense" because of egg temps -- we are not reptiles or birds. Our eggs are produced and nurtured in a completely different fashion. It's one thing to see things in studies on rats or apes -- and even then, they don't apply evenly to humans. It's a whole other thing to extrapolate across classes.

:cheerteam: thanks

[atomic sagebrush]

The theory with temps and swaying is that because the original theory was estrogen = boys, progesterone = girls, this meant that lower temps = higher estrogen = more boys, and higher temps = higher progesterone = more girls.

The trouble is that

a) it does not really work like that - when your temps are low in the FP, and high in the LP they are SUPPOSED TO BE LIKE THAT since it is how your body works, and messing with estrogen and progesterone at the wrong part of the cycle can (and did) mess up people's cycles badly

b)There are lots of reasons why people's temps differ from another - metabolism, thyroid, body weight, etc and comparing your temp to another person's given all that is completely meaningless

c)The idea that high prog = girls and high estrogen = boys is NOT proven at all and in fact, especially the progesterone angle, is probably entirely incorrect anyway. When we have people go onto LE Diet they often develop lower prog and short LP and then get girls that way and additionally many of our all girl mamas have a chronic short LP, so it simply cannot be the case that progesterone = girls.

And just to elaborate on what Panther has already mentioned, mammal and reptilian reproduction is so dramatically different that our gender selection does not even work remotely the same. Crocodilians do not have chromosomes and thus their gender determination method is totally different than ours. Animals with chromosomes have their genders determined by chromosomes and not temperatures. They are two entirely different things - genotypic sex determination and temperature dependent sex determination. https://www.scientificamerican.com/article/experts-temperature-sex-determination-reptiles/

[XXforhubby]

Lol, Crocodiles have chromosomes just not sex chromosomes- their determination for sex is temp dependent [emoji6].


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[emoji178]Baby Girl [emoji254]EDD 9/30/2017 [emoji178]

https://lmtm.lilypie.com/kIlmm5.png (https://lilypie.com)

[atomic sagebrush]

Sorry, I answer a lot of questions and this is one of the last ones I answered.

They don't have X and Y chromosomes or ANY chromosomes that determine sex. Other animals have different chromosomes like birds have ZW chromosomes, but some reptiles don't and their sex is not determined genetically by chromosomes. Obviously they have chromosomes, but I was thinking in terms of gender selection.