late period

i’m 17 years old and in high school, and my period is currently late by about a day or two and i’m just a small bit worried. i do have a boyfriend but we haven’t had penetrative sex, and we’ve been careful about making sure we’re safe with what we do.

last week on thursday, i fell off my bike and got hurt pretty bad; i’ve still got a giant bruise on one leg, and a pretty bad scrape on my other knee. i didn’t think much of it, but that night i’m pretty sure when i went to the bathroom there was a bit of pink when i wiped. i didnt think much of it so i went to bed, and saw a little more light pink that morning. it wasn’t that big of a deal, but when i got back from school there was a noticeable amount of like brown in my underwear.

naturally i got a little worried because it couldn’t have been my period; it was a few days earlier. i did a little bit of spiral searching and it said i might have implantation bleeding, and i’ve been absolutely terrified since. however, im pretty sure the chances of being pregnant are practically impossible, given how careful we are.

the weird brown was like the consistency of discharge, and there wasn’t a lot compared to the other photos i’ve seen of implantation bleeding. i also checked my dried underwear like a day later after it happened, and i saw regular white discharge mixed with the old blood brown. after that day, there’s only been like little dots of red mixed in with just regular discharge for like the past few days.

i also checked if i was actually injured and i found a spot that was stinging when i touched it, below my clit and above the opening of the vagina. it looked a little red, and doesn’t hurt as much when i touch it like it did a couple days ago.

i’ve had all my regular pms symptoms; sore breasts, oily face, bloating, acne breakouts. just no period. i’ve only gotten nauseous like once for two minutes and that was because i ate something weird—and i didn’t worry about it because my sister said she was nauseous too. had a small headache a couple days ago—that went away too.

i do need to note that i have been really stressed for the past two months because of tests and the school year ending, and i haven’t been eating or sleeping properly.

i can’t tell if i’m just stressed and this is really bad timing or if i should get this checked out. help :’)