Normal or could be pregnant ?

Gina

Hey guys ... so I knew this month I would be getting my period on the 11th of September ... on the 7th overnight following the 8th I was having bad backaches that I never have .. then on the 8th around noon I used the restroom and when I wipe it was pink throughout the WHOLE DAY and it wasn't much and turned a little brown.. the next day (9th) I had a regular period (even put tampon in) .. on the 10th it was back to pink blood when I wiped . I kept a pad on the entire day and it was soaked of anything mostly pink/brown .. I know it a possibility I might be pregnant but I just need advice and help .. please no negativity. So my period was only a day basically