What is a Triphasic Chart?

You may have heard the term triphasic chart or triphasic pattern and wondered what this meant.  A typical ovulatory bbt chart is considered a biphasic chart – meaning two phases.  A triphasic chart means that it has three phases or three sustained temperature shifts.  The third shift usually takes place sometime around 7 to 10 days after ovulation and may correspond with the timing of implantation.

The reason that women see a shift in their body temperature after ovulation is due to an increase in progesterone secreted from the corpus luteum.  Once implantation occurs progesterone levels may increase again.  In some cases, this can be seen on a bbt chart.  

Is my chart triphasic?

If you can see two sustained thermal shifts on your chart you may have a triphasic chart.  However, some charts that are triphasic are not quite as easy to spot.  One example of a triphasic chart is one that has a slow and steady climb followed by a second steady climb.  

But, it is also common to see a chart that has a sustained thermal shift after ovulation, followed by a slight or even dramatic dip in temperatures around 7 to 10 days after ovulation, and then followed again by an even bigger increase in temperatures.


Does a triphasic chart mean you are pregnant?

The short answer no.  A triphasic pattern on your chart could be an early indication of pregnancy.  However, having a triphasic pattern doesn’t necessarily mean that you are pregnant.  If you do have a triphasic pattern on your chart though consider it is a good sign because it is more frequently seen on pregnancy charts than non pregnancy charts.  

No votes yet


By RebekahTanaka on 06/16/13 at 10:22 pm

I also recommend the PREGNANCY MIRACLE METHOD to get pregnant fast and naturally!

Sign in to leave a comment!

Today on JustMommies

Cervical Dilation in Pictures

Your doctor has measured you and told you that you are 1 to 2 centimeters dilated, but what does that look like?

Bully-Proof Your Child

Bullying is one of those inevitable facts of life. As much as parents try to eliminate it, schools try to govern it...

Celebrate the Arrival of Autumn

Autumn is here! While we watch the leaves begin their graceful descent from the trees...


From the Message Boards

Trying to Conceive

new to board

Hi ladies just wanted to introduce my self. My name is Marie I am 32 dh 34 we are ttc #3 have been f...

The Two Week Wait Escape

Need Opinions.

My last known menstrual was Sept 3-7th. I have regular cycles. I had the mirena IUD put in like Sept...

Trying to Conceive Older Members

Just curious

I am just curious if I am the only one who will have large age ranges between this baby we are worki...

Trying to Conceive

BBT Thermometer

I found the most amazing BBT thermometer! I was looking on amazon, and there weren't many reviews on...

Trying to Conceive

2WW for October Roll Call

Thought I'd start a new thread for the new month. I'm 11 dpo today... this morning I lay in bed re...

» Check out the friendliest message board for moms and moms-to-be!