I started my last period on the 28th of September and had sexual inter course on the 4th and 5th of October. I took plan b on the 8th of October. On the 14th of October I started a brownish gooey spotting. The next day (10/15) it was just like my normal period. But on the 16th of October it stopped immediately. I am having that brown discharge again. Are these side effects from the pill? Will I get my period again on the 28th? Is this normal or should I be concerned?