I am still learning but I think your temps look really good!
Well, let's see...I don't think it's triphasic. To be triphasic, it needs to show two separate levels of temperatures after O (first one rise after O and then another rise about halfway into the 2WW). It's a very nice rise, though! Hopefully it's a BFP! Good luck!
That dip and then spike on day 7 could me be implementation. I charted with all of my pregnancies. This looks pretty goo. I wish you the best of luck.