okay so i’ve been on birth control for 9 months now. 6 on shot, 3 on pill. 4 days ago i took a pregnancy test followed 2 negatives a couple days later but u was told false positives are extremely rare and the negatives can be because of how early i am in the pregnancy if i even am pregnant. yesterday i had sex and i started bleeding but it was light so i was told it could be implantation bleeding but this morning i’m still bleeding and it’s a little heavier but there was a big chunk of something laying on the pad. the blood is a dark rustic brown color so i’m really confused if it’s implantation bleeding, a miscarriage, or if i started my period and i was never pregnant. can someone please help me understand what’s going on?