hi all,
could someone maybe have a look at my chart? I've had 2 massive dips and I don't know what's going on. I thought the first dip might have been implantation but I had another dip, does that something was wrong with the implantation? I've got all AF symptoms, and maybe the second dip is a sign that AF is coming? FF changed my O date from CD15 to 18, which i know is wrong.

Would really help if someone could help

thanks so much