orly your chart is beautiful. can we trade??
Dont stress over the BFN cause anything before 12 DPO is considered early.
I got a BFP with my son at 7 DPO and with my last pregnancy i got a BFN at 14 DPO and then only got the BFP at 16 DPO... It varies with every pregnancy trust me.
Test again in a few days.