implantation bleeding or just wacky period?

abby

my boyfriend and i had sex abt a week ago, with a condom, but there was definitely some room for error. i started bleeding yesterday, but it’s way lighter than usual and the consistency is more similar to discharge. yesterday was the day expected to start my period, however, the same day implantation bleeding would occur as well. the blood is darker and almost sticky, which is concerning. i usually fill up a tampon in 3 hours on the second day of my period, but this time i barley get anything when i’ve left one in for five. i’ve also been super tired and feeling uneasy and just kind of off, which may be just pms. i took a test yesterday and it came back negative, but i don’t know if it was too early. sorry if all this sounds stupid, but i’m new to this! what do y’all think?