Calling all BBT experts, advice needed

lintu

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Hiya ladies,

Wondering if you could help, I was wondering why I need to check my BBT at the same time of day?

I know it has to be done after at least 3 hrs sleep but what's the significance to keeping around the same time??

I ask cos when I did my temps the nth of my :bfp: they were all 97 and upwards, I was taking it around 8am when I woke.

Started temping again this mth and they are all low under 97, only once or twice going up?? The only thing different is the time of day, I know get up at 7am due to a new job.

Could this be the reason???
 
Hello! I'm not an expert so I copy/pasted where I read my information when I started charting this month:

1.Take your temperature first thing in the morning before you get out of bed or even speak -- leave your thermometer at your bedside within easy reach so you don't have to move much to get it. If you use a glass thermometer, make sure you shake it down before going to bed.


2.Try to take the temperature at as close to the same time each day as possible -- set an alarm if you need to. Staying within a half hour either side of your average time is a good idea because your temp can vary with the time (i.e., if you usually take your temperature at 6 a.m., it is OK to take your BBT between 5:30-6:30, but the closer to 6 the better). The normal variation is by up to .2 degrees per hour -- lower if you take your temperature early, higher if you take it late.


3.It is best to take your BBT after a minimum of 5 hours sleep, and at least 3 in a row is preferable.


4.You can take your temperature orally, vaginally, or rectally -- just stay with the same method for the entire cycle.


5.You should try to place the thermometer the same way each day (same location of your mouth, same depth vaginally and rectally).


6.Plot your temperature on your chart each day, but refrain from reading too much into it until the cycle is done.


7.Some women, not all, have a temperature drop when they ovulate. If you see this drop, it is a good idea to have sex in case you are ovulating.


8.What you are looking for is a temperature shift of at least .4 degrees over a 48-hour period to indicate ovulation. This shift should be above the highest temperatures in the previous six days, allowing one temperature to be thrown out as inaccurate (fluke, illness). Perhaps the best way to explain this is to show an example.


In the image above, the seven BBTs before ovulation are 97.2, 97.3, 97.8, 97.4, 97.2, 97.3, 97.0 then it jumps to 97.7 and then 98. Ovulation most likely occurred on the day with the 97.0 and you can comfortably draw a coverline at 97.6. You just ignore the 97.8 on day 10.


9.After you see a temperature shift for at least three days, or at the end of your cycle, you can draw a coverline between your follicular phase and luteal phase temperatures. With luck, it is easy to see a clear shift and draw your line between the highest follicular phase BBT and the lowest luteal phase BBT as in the sample above. The main reason for drawing this line is just to clearly delineate that your chart is biphasic.


10.Look at the chart at the end of the month to analyze what happened.


11.Chart for a few months and look for patterns.


12.If your temperature stays up for 18 days or more after ovulation, you should test for pregnancy.

One thing to note is that women with ovulatory cycles but with irregular cycle lengths, the greatest variation from cycle to cycle should be in the follicular phase. The luteal phase should be relatively constant (within 1-2 days). So if one has a cycle that ranges from 28-34 days, and a luteal phase of 14 days, ovulation would occur somewhere between days 14-20 -- not the middle of a cycle, not day 14 . . . This is the biggest mistake women with long cycles make when trying to conceive.
 
Thanx Hun,

2.Try to take the temperature at as close to the same time each day as possible -- set an alarm if you need to. Staying within a half hour either side of your average time is a good idea because your temp can vary with the time (i.e., if you usually take your temperature at 6 a.m., it is OK to take your BBT between 5:30-6:30, but the closer to 6 the better). The normal variation is by up to .2 degrees per hour -- lower if you take your temperature early, higher if you take it late.

That could explain why, its lower this mth than last
 

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