Did the pill screw me over?

I had a light period the end of July and thru the beginning of August. I drank a morning after pill on August 9th, but 9 days later I had a light brown bleeding for 8 days with mild cramps. I also felt my stomach bloated for 2 days during my spotting time. I did vomit a few times, felt more tired and dizzy than usual. I was expecting my period on the 31st of August yet theres no sign of my normal period. So far i have been wiping a white discharge. Any clue what it could be?