What is going on??

J

So I get my period regularly every 26 days or so and I usually ovulate anywhere from 4 to 6 days after my period. Well I’m three days late and still getting BFN. I have never missed a period before so I was thinking maybe I was finally pregnant but keep getting negative tests. Have an appointment next Thursday with my gyno hopefully he can give me a blood test. Anybody else have the same issue?