This month is a mess 😢

My temps are ALL over the place. I did get a positive opk, SHOW, and EWCM, just a few days later than last month. I'm wondering if I've been mouth breathing and that's what's been throwing off my temps? I've been stuffy around bedtime and waking up with a really dry mouth. There have also been a bunch of nights where I didn't get 5 hours/3 uninterrupted.

I've been really stressed, though, so I guess that could've prevented me from ovulating. I was really hoping this would be my lucky month.

Thoughts? Anyone have something like this and still get a BFP?