So AF is about 9 days late I’ve had some very mild cramps, and two headaches( I never get headaches). Took two tests when af was 6 days late and got negatives. Just today I thought my period was about to start (my lower back area felt achy), and about two hours later (around 4pm) I found a tiny bit of blood in my underwear( kinda brownish) and nothing since. It’s definitely not my period. None of this has ever happened to me before. Does this sound like pregnancy to anyone else??? When should I test again???