HELP! -ve FRER at 12dpo-what are my chances?

Katie • 27 years old, married
Urgh. Fed up. Please help me!
​Did anyone get pregnant with these circumstances or think I have any chance? 
​ 
​Ovulated later at cd17 so + 14 days luteal = AF now due Friday 18th (was today).  Tested today with 10miu and a FRER and nothing but BFN. FRER packs say detects pregnancy 3days before AF in 98% of women so now feel very much out of the game if only 2% chance for me!
​Iv had a high temp for several days that dipped today (the day I would have been due AF) does this mean anything? 
Could i still have any chance? 
I had hoped this 'extension' on my AF coming was a good thing but now thinking it's just dragging out my next window to try again. Giving me false hope ??

Glow Resources

Let’s Glow

Glow is here for you on your path to pregnancy

Glow helps you navigate your fertility journey with smart tools, personalized insights, and guidance from medical experts who understand what matters most.

25+ million

Users

4.8 stars

200k+ app ratings

20+

Medical advisors