Ovulate early??


I am just curious if anyone with a normal 27-32 day cycle has ever Ovulated on CD 5??

This is my first month temping so I’m super confused! I didn’t temp the same time but I did get the same “amount” of sleep (6.5 hrs).

But my temp shot up from yesterday morning an entire 1 degree (F).

We have been TTC for a year now and thought maybe this would help me determine if I am ovulating & when.

I jumped my SO this afternoon juuussttt in case 😅

*also someone said being a mouth breather at night can affect it? will it really throw it off or just a little?*

Thanks for any replies!!