10 days high fertility, no peak

Hi! New to this community. So happy to have found it! I'm 41 and have 4 children ages 21 months, 5, 6, and 8. I had 3 miscarriages Sept, Aug, and Oct. BFN Nov. I've been charting BBT, CV, and using CB digital OPK this cycle. I started testing on Cycle Day 9 and had 2 low days, followed by 10 high days but no peak. Based on CV and BBT alone, I should have peaked around CD 10-12. Is it possible I peaked but it was too low to register? Is it possible I'll peak later and need to continue testing? Or should I stop testing this cycle? TIA!