CD 51 still BFN 😞

Arianne
My last period was July 26th and I have not had a period since that date. I missed my period in August which is unusual for me. I've taken two test and they both came back negative. I'm not stressing and I recently came from the doctors and everything was normal. I'm not sure what's going on. And this is cycle day 51 for me. Anyone else experienced this?