Is it even worth it!?😣

AF "came" 3 days late and was super light almost non existent, second day pink spotting, third day brown spotting and today nothing. I still feel nauseated, slight cramps, headache, backache, TENDER breasts.. just all very strange. I tested first day of "bleeding" and BFN. Should I just count this as a light period, or should I take the plunge and test again. I'm about 7 days after expected AF.😩😞😔