Which day do you think I ovulated?

stacy
I got a dark positive on the 4th, got another positive on the 5th so we bd(not as dark but still positive). Glow said I ovulated on the 6th but I had pink brown spotting on the 7th that only lasted an hour at most. Did I ovulate on the 6th and it just took awhile for the spotting to come out? Had negative opks the 6th and the 7th