I'm 15dpo, AF was due yesterday and my temps are still elevated. I tested at 13dpo and got a BFN :( I'm dying to test again but I don't know if I should. Should I wait a few more days and see what happens with AF? Here's my chart. Could that be an implantation dip around 4dpo? I hope so, but I don't know. What do you think I should do? I'm excited to test again but nervous it'll be another BFN.