help, I'm so confused

Nicole
I'm at CD 36, I'm a week late.
Multiple BFN... Including a digital one right now.
My period last month wasn't normal, lasted 7 days bleeding on and off and was a week early.
We don't protection, never have. Ive only been late one and that's when I was pregnant prior that ended in a miscarriage. 
Im lost and I feel like something wrong with me, I don't know what to do... Wait another week and see what happens ?