I need help. I am so confused. My normal cycle length is 25-28 days. I've only been charting for 1 month & used opk's for 2 months. According to last month, I o on cd14 & AF started 15 dpo. Textbook cycle. This month, I got a peak on cd7, watery cm & temp spike on cd 9. Therefore, FF said I o on cd 8. If according to last month my luteral phase was 14 days, then I am assuming that is the average bc from what I understand, this phase doesn't fluctuate much? I got bfn on 16 dpo. Temps dropped yesterday & today (17 & 18 dpo) but are still above cover line. No sign of AF yet.
So when should I expect AF? 14 dpo? Or cd 25-28?
I want to test again but I just know as soon as I do AF will show up & I don't want to waste that money.