BBT Help Please - Mouth Breathing?

Liz
Hi ladies,
I was wondering if you could help me. I'm charting BBT for the first time this cycle, and I am confused. I had a positive OPK on Tuesday morning and the temp drop for O. I've also been having O pains. 
As you can see, my temp dipped this morning. I am fairly certain I was breathing from my mouth. Is this a problem? I'm a little worried, since my temp was higher one day earlier in the cycle (although I was feeling sick, so it could be a fever).
I just want to confirm O so I know all is working right. 
Thanks for your help!