Help! Confused!

I’ve been using the Clearblue advanced ovulation tests this month and today had my 4th “high fertility” flashing smiley face. I haven’t yet had a temp spike, so I was thinking I’m going to ovulate probably late this week.

Well just now had a glob of blood... not bright red like my normal periods and not dark red brown like the last day of a period. It was a dark crimson red. I’ve never had spotting before...

Has this happened at anyone else?? Am I starting a period? Is my opk wrong? I’ve read people have implantation bleeding, but how much?

😪😪😪 I just don’t know what’s going on!