Late ovulation or sign of pregnancy?

Nat

I thought CD 18 was my peak and now I think it’s today .

My period is suppose to start it 2-3 days, but now idk anymore. The reason I took an ovulation test today was bcus I woke up with so much clear discharge and the test stole the dye immediately. It’s extremely dark , and this is my first time tracking ovulation . I took a pregnancy test as well even thought it’s still a little early and it was negative .

Is this a sign of pregnancy or just late ovulation?