Hi My Period Got Over On 29th Dec. And I

Hi my period got over on 29th dec. And i had unprotected sex with me bf on 31 st dec. He might have cum inside. I took the ipill within 12-16 hrs. I experienced a bit of white discharge the next few days. But on 5th jan i had a heavy white watery discharge. But 5th jan was my ovulation day.My period is due on the 20th of jan.
Can i get pregnant?