what could be causing blood in vaginal discharge?

[cubanita509]

so i recently lost my virginity but the last time i had sex was jan 8th. it was unprotected sex, which had me worried that i'd end up pregnant, but i got my period as usual on the 15th. fast forward to now, i'm off my period (i only get it for 3 days = i finished on the 18th), i believe i'm ovulating. a few days ago when my ovulation started (or i assume it started) i noticed very little specks of blood in my discharge. i googled what it could've been, a lot of the results said it was a result of ovulation. it only happened once, didn't deal with any more blood until now? everything was fine until i took a shower (did masturbate, used two fingers if it's of any importance). went to the bathroom later to pee, noticed there was blood in my discharge? this time more than a speck, it looked like kind of when you blow your nose too hard and blood ends up on the tissue. anyway i wiped it all away, but i've been going back to the bathroom every hour or so to check if it's gone or has shown signs of improvement, and it's still there, the same as always. except now my discharge went from a white/cream color to a clear-ish/light brown-ish color tinged with light blood. it's not bleeding the way one would during a light period, but there's def a small tinge of bright red blood. it's been a few hours now, i showered at 4 AM and now it's 10 AM. i do feel like i'm having cramps in my lower abdomen too, so does anyone have any idea what this could be? could it be from something i did while masturbating? could i be pregnant/having implantation bleeding even though i did get my period?? and for context i'm not experiencing any other symptoms at all besides what i've described.