I?m a 23 year old. I had unprotected sex on the last (5th) day of my period which was 4th jan. I had ipill within an hour. I had mild spotting for 3 days in the next week (spotting started around 8th or 9th jan) I was supposed to get my period on 27-28th jan but it still hasn?t come yet. What could be the reason?

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