Try not to worry SB (I know,easier said than done!)
Possibly, this temperature fluctuation could be due to anything:
* worrying about testing, leading to an unsettled sleep pattern
* testing at different times
* having a slight cold
* having a cold room
* spending ages looking for the thermometer, so you are exposed to the cold in the room
If the progesterone thing is worrying you, you could go to the doctor to get hormone tested (especially if you have been tested before - the doctor probably would be more than willing to help).
Don't worry, the fact that you have positive OPKs show that you are ovulating and you can monitor the rest of the stuff.
Here's to you getting a BFP this month hun!
