Frustrated :(

So last month a I bought a ton of opks to use for my next cycle. Well I was supposed to start the 13th but nothing yet, and I have no reason to get excited cause my SO has been out of town dealing with family stuff so I know we haven't baby danced any time soon. First time in a long time I was actually looking forward to get AF. And I'm not sure I'm getting this temp thing down. I keep my thermometer by my bed and have started taking my temp for the last week before my cycle should have started. Now most of them are the same or close 97.04- 97.07 but like today I got a weird one 97.65. I didn't think they changed that much. I really really just wish I'd start already.