i had unprotected sex and thn next day i had taken morning pill, again after two daya we had unprotected sex and i had to take it again.

week later when we had sex i found some blood spot and i started having abdomenal pain but the bleeding was not much
next day i saw only the brown spot..i wanted to know is this because of morning pill ,im worried about my health issue is there any chance of getting serious effect on my health ?. is there any chance of me getting pregnant?