As long as you have fertile cm I'm pretty sure you can stuff figuring out the height
you generally won't get ewcm unless you're fertile (or sometimes it's an early pregnancy sign, it happened to me!)
Cdex this mornings temp does look off, how much later was it than you normally wake up? I figure 1dpo is still worth a shot since you cannot pinpoint ov more than a 24 hour window so even when you think you might have O'ed it might still be a chance left
Thats how I roll at least, helps me de-stress ttc bd!