plan b made my period 2 weeks early ???

so exactly a week ago (Monday August 12) i took plan b after unprotected sex, i had told him to at least pull out but he didn’t, last night i had very light spotting when i wiped, and this morning i still had some light spotting when i wiped but nothing on my pantyliner.

my period isn’t due till 2 more weeks, i should get my period the first week of September (i’m super regular) but this light spotting is maybe my period ? has anyone got their period super early after taking plan b?

(i’ve taken plan B before but i never got my period this early, it still comes around the time i’m supposed to get it)