Planning a Baby  Discussion Forum

i want know what is bbt what is its use please help iam also trying for baby hopingfortejas replied. Hi,
BBT stands for basal body temperature , you can find out when you are ovulating or when you have ovulatede by charting your temperature the first thing in the morning ...

i have attached some info which was given by Krsna in one of the earlier posts ... hope Krsna is fine wiht that :)

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Charting your BBTs is really pretty easy. Basically, what you are doing is taking your temperature first thing each day and plotting the temperature on a chart. What you are looking for is to see a shift of at least .4 degrees Fahrenheit after ovulation making your chart biphasic (showing low temperatures before ovulation in the follicular phase, and higher ones after ovulation in the luteal phase).

*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 (you can allow one temperature to be thrown out as inaccurate - fluke, illness etc).

*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.

*13*
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.

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