Strange. What this might be? Any ideas?

Nitte • Tue, Jul 24

My periods (or something brownish blood alike) came three days earlier than I expected. Never happened like this before. I guess we have to try next month. Again... 😔

I did pregnancy test this morning and I thought that I really saw a vvvfl 😔 Update: No signs of AF since this morning... No blood no brown’blood’... what is this?