Here's what FF says:
Q&A Index > Triphasic chart
What is a triphasic chart pattern? Does it mean I am pregnant if I have a triphasic chart pattern? Do I have to have a triphasic chart to be pregnant?
A triphasic chart shows three levels of temperatures: pre-ovulation, post-ovulation, and then a second rise around 7-10 days after ovulation. Some women with charts that show this pattern turn out to be pregnant. But many do not. Likewise, your chart does not need to show this kind of pattern for you to be pregnant. Whether or not you are pregnant, progesterone, the hormone responsible for raising your temperature after ovulation, generally peaks in the middle of your luteal phase and this can cause this kind of pattern whether or not you are pregnant.
A triphasic chart can be promising, however, because progesterone levels generally increase after implantation (7-10 days past ovulation) in conception cycles, and sometimes this results in a triphasic pattern. If your chart shows a second significant thermal shift that begins 7-10 days past ovulation, Fertility Friend will indicate a triphasic pattern in the Pregnancy Monitor. A triphasic chart, however, is not a definite sign that you are or are not pregnant. It is just increasing your probability if you also have well-timed intercourse. Likewise, you can be pregnant and not have a triphasic pattern. Like all signs of possible implantation or pregnancy, you can really only speculate about it once a pregnancy has already been confirmed.
I only reacted because this didn't happen to me last cycle and I didn't know if anyone else has had this happen? I know it can mean I'm not pregnant, but I tested to be hopefully. I'm going to wait a few days. I think I have some coupons from when I bought my pre-seed for tests. I'm just hoping everything is right on my cycle. I know the 4 temps (3DPO-6DPO) are most likely wrong because of my BBT, so I bought a new one. Here's to hoping I guess. Even if by some chance the 3 temps that rise in my DPO could be O ones I BD to be safe. I guess all I can do it wait and see.
fingers crossed. x
i just hope they help me and dont make me wait for ages like they did with my pcos. 
I tried to test today with the pregnancy strips that came with the OPK ones, but it was negative like I thought. My DH thinks I should go out and buy a test, but I don't want to just yet. My symptoms are crazy as well! Like night I got so hungry, I couldn't control it! I had a sandwich then mac and cheese. My back today is hurting and my skin in breaking out. (it's been doing that the past days) I don't know if the one time looks like I O'd, but I haven't had any fertile signs like CD 12 when I got the +OPK. I have no clue what's going on anymore. What do you ladies think? As always I'm tired, feel sick when I wake up, gassy and now I'm thirsty as well
