Slight stringy spotting? BFP this morning at 10dpo... confused!!! (With TMI pic)

Pretty sure I had very slight pinkish implantation spotting at 6dpo. I’m talking like only a tiny bit when I wiped and that was it. I thought that was “implantation bleeding”. I’ve been TTC for over a year, have one child already (though that was 12 years ago), and have never had this before. Got a VFL BFP this morning with FMU, and now just went to pee and saw another slight bit of blood-tinged mucous when I wipe. Underwear are clean. What is this? From what I googled implantation is a process and can take several days with spotting possible throughout but why am I then getting a BFP already? I’m so paranoid since my CP that I’m afraid I’m losing this one before it’s even really started... or am I just being paranoid?