Anyone want to join my very unscientific study?

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Joined: 09/29/09
Posts: 1346
Anyone want to join my very unscientific study?

My sister is a vet tech. She told me over the weekend that one of the ways they watch for labor in animals is by checking the animal's temp. There is a significant drop in an animals temperature 24 hours before birth. I asked my midwife about this on Monday but she said she has never heard of this.

In the meantime i have been researching the hormone shifts of labor, mainly Progesterone because that is such a 'hot' hormone and it is high during pregnancy. If any one here ever charted their temps during their cycles you've seen the upward temp shift caused by Progesterone at ovulation and the second shift at pregnancy. Well from what I have read during pregnancy Progesterone inhibits uterine contractions and keeps the cervix long and closed. It drops before labor and estrogens rise! That is the perfect scenario for a temperature drop.

I started taking my temps 3 mornings ago. I was 98.8, 98.4, and today I was 97.2. If anyone wants to start watching their temps with me I think that would be really cool!!!

You would think after centuries of women giving birth someone would have picked up on this phenomenaby now... So maybe I am totally wrong in my hypothesis. I am very curious though!

_Jessicah_'s picture
Joined: 04/21/11
Posts: 1973

That is very curious. I am not familiar with "temping" as I've never done this so what exactly do you have to do? I know obviously take your temperature but are there any other requirements? Such as taking it the exact same time every morning, before you get out of bed, etc.

Joined: 09/29/09
Posts: 1346

Just take it at the same time everday before you get up. It's okay to be off by 15 minutes, but more than an hour off can skew your results. Ive been taking mine about 645am since that is when ds1 wakes up!

PAmom2boys's picture
Joined: 04/29/09
Posts: 1494

Hmmm... I'm curious now. I'll give it a try. I love experiments.

HaganBaby's picture
Joined: 10/17/07
Posts: 334

Regular or basal? I threw away my basal when I got knocked up lol well I retired it after many years of confusing the hell out of me with no results lol.

mlle_carrie's picture
Joined: 07/17/05
Posts: 1134

I'll play along...I will just have to dig up my thermometer. I temped forever and ever, so it shouldn't be hard to go back. Hopefully, my pregnancy brain will allow me to remember to do it everyday.

BTW, that 97.2 seems like a little drop to me! I know you don't have much data for comparison, but still, maybe, just maybe?!

Jenn0113's picture
Joined: 03/09/07
Posts: 5335

I stink at temping but I am interested to see what your findings are!

JuneorJulyBaby?'s picture
Joined: 10/20/08
Posts: 2479

That is very interesting!!!! I temped for both pregnancies and for NFP due to my irregular cycles so I might have to break out my BBT and see what happens.

Joined: 09/29/09
Posts: 1346

"mlle_carrie" wrote:

BTW, that 97.2 seems like a little drop to me! I know you don't have much data for comparison, but still, maybe, just maybe?!

Mmm you noticed that too? As did I! Hehe. It would be so cool if its true!

mlle_carrie's picture
Joined: 07/17/05
Posts: 1134

I'm just wondering if all the tossing and turning and trips to the bathroom will affect my temps in the morning?

Joined: 09/29/09
Posts: 1346

It might bump them up a little, but from what I read about dog and cat studies it is a 3-4 degree drop. Human temps aren't nearly as high as an animal... Dogs are 102 or there about normally and drop to the high 90s before labor. I would expect a human to drop about 1-2 degrees. Tossing and turning probably wouldn't skew your results as drastically as that Smile

JuneorJulyBaby?'s picture
Joined: 10/20/08
Posts: 2479

"mlle_carrie" wrote:

I'm just wondering if all the tossing and turning and trips to the bathroom will affect my temps in the morning?

I think it would. You need 4 hours of solid sleep to call a temp "real" as far as NFP goes, but then again with NFP you are looking for subtle shifts, usually less than 1*F

Joined: 06/04/11
Posts: 573

With dogs its easy lol I work at a vet clinic and my daughter and I also show dogs so we know a lot of breeders. near then end they take the temp regularly to watch for that drop. They have it a bit easier though- 63 days and if the labor does not start within a few days of that they do usually end up having c-section. so that may not be the easy part- but 63 days is!

temp is taking anally always as you can't get that acurate of temp any other way with animals.

It would be interesting to know if humans are similar with the whole temp thing.

PAmom2boys's picture
Joined: 04/29/09
Posts: 1494

Dang it - I've forgotten already!

mlle_carrie's picture
Joined: 07/17/05
Posts: 1134

"PAmom2boys" wrote:

Dang it - I've forgotten already!

Me too!!

_Jessicah_'s picture
Joined: 04/21/11
Posts: 1973

So do you just use a regular thermometer and take your temp orally?

mlle_carrie's picture
Joined: 07/17/05
Posts: 1134

"_Jessicah_" wrote:

So do you just use a regular thermometer and take your temp orally?

I've always used a basal thermometer and just took my temp orally, first thing in the morning, at the same time every day, before rolling out of bed or moving too much.

JuneorJulyBaby?'s picture
Joined: 10/20/08
Posts: 2479

I'm going to start around 37 weeks.

Joined: 09/29/09
Posts: 1346

I had a big drop today! Luke woke up 15 minutes early so that may account for some of the shift... But I was 96.2 from a baseline of about 97.5. I don't feel any different. I did notice yesterday that my BH's are less overall, but lasting much longer.

JuneorJulyBaby?'s picture
Joined: 10/20/08
Posts: 2479

OOOH I hope this is it for you Carolyn!!!!

PAmom2boys's picture
Joined: 04/29/09
Posts: 1494

oh neat! I still haven't gotten my thermometer out. I don't think I'm going to help contribute to the study.

I hope it means something for you!!

lesleynka's picture
Joined: 04/26/11
Posts: 1845

Hopefully it's what you need Carolyn Smile Idk anything about temps so I feel kind of lost.

Joined: 09/29/09
Posts: 1346

Lesley I have this theory that there is a temperature drop 24 hours before labo
r. It is well documented in animals, I have no idea if it is true for people, but I have been tracking my temps out of curiosity Smile

Joined: 09/29/09
Posts: 1346

Ugh double post. Dumb phone

lesleynka's picture
Joined: 04/26/11
Posts: 1845

"Carolyn85" wrote:

Lesley I have this theory that there is a temperature drop 24 hours before labo
r. It is well documented in animals, I have no idea if it is true for people, but I have been tracking my temps out of curiosity Smile

I remember this. I think it's a great theory & study. You are probably right I would imagine. But I mean idk how to temp or difference b/t basal & w/ a regular thermometer, etc.

mlle_carrie's picture
Joined: 07/17/05
Posts: 1134

I was totally going to participate in this, but I can't find my thermometer and I'm not going to buy a new one. How's it going for you Carolyn?