Confused!

Took an ovulation test on Sunday 9/26 and it came back positive. We bd every other day this month so we are on good timing. Yesterday I was checking my cm because it was in my pants, lol, and it looked different more like when I'm ovulating. So just for shits  and gigs I took an ovulation test and it said it was positive. Any thoughts?! Can I really be ovulating for four days( I wouldn't think so) any advice would be wonderful.