Am I pregnant or is this something else?

Hi everyone, I’m hoping someone can give me some insight into what is going on. I am currently on cycle day 47. My usual cycle is 31 days long. I had all the symptoms of a period coming but I never bleed. I had unprotected sex a few times, but all pregnancy tests have come back negative. If I missed the period, I would be ovulating around this time, but all ovulation tests have been negative as well. Any idea as to what is going on?