Gotta say I'm with them, don't worry so much. There are a lot of things that can change your temp and most are far less serious.
I agree stop taking your temp.it will drive you mad,it dont mean a mc is going to happen,temps fluctuate all the time through pregnancy.as previous post,if your not having any kind of pain etc,then dont worry.worrying wont help.
Why are you temping if you're already pregnant? I personally think that's a bad idea as you may read too much into the numbers. If you aren't cramping, bleeding, etc, I wouldn't worry about a miscarriage. Temping while pregnant isn't the same as temping while TTC. When TTC, a dip in temperature means AF is coming. But temping while pregnant does not mean when you see a tip you're about to miscarry.