Feeling frustrated and confused

Megan

I am now 7 days late and have not had my normal period symptoms. I am very regular with when my period starts. I was urine and blood tested at 5 days, but it came up negative. My doctor said if AF still hasn't started by August 10th, then she wants to retest everything. I feel like my body is trying to tell me something, but the tests all tell me otherwise. What do you think?