is this implantation or my period ?? ( hoping it’s my period )

so i’m on lo loestrin fe .

i took the first white pill the night of the 10th and the next day i had light brown discharge .

i took my second white pill last night ( i take my sugar / iron pill tonight ) and i had this dark brown discharge .

the reason why i’m asking this is i took antibiotics february 1st for a kidney infection that i get all the time . i am guessing that it’s too late for implantation so is it my period ??????

ps :: i always get brown discharge before my period .

You