This BBT cycle chart

has been so confusing for me. I didn't get a registered peak on my CBFM monitor this month. I did have a temperature spike when I was suppose to ovulate. In addition, I only had 1 day of true egg white CM, when I normally get at least 3 days of that. Any insight would help. AF scheduled to start tomorrow. I'm 13 DPO and have gotten two negative HPTs so far, from 10 Dpo and 12 Dpo.