SOS pregnancy or altered cycle?

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SO. i just got over having covid and i think it might have altered my cycle. i was a week late on thursday so i took a test and it came back negative. that night i got a bit of blood so i assumed i got my period because normally i spot then it happens full blast period ok? so the next day theres no real blood just spotting and im having the symptoms of a period like cramps etc. its been like this since and its now sunday night. still just spotting and bad cramps every now and then! i dont know what it is but im so scared im pregnant and that the spotting is implantation bleeding (even though the last time i possibly could’ve gotten pregnant was october 17 or 23) but the test was negative. im going to test again but is there any possibility its from covid or my birth control? im on the minipill and its never messed with my period for the 6+ months ive been on it. im so anxious yall any thoughts help!