Hi I Came Off Cerazette And Had Sex Two Days

Hi i came off cerazette and had sex two days before I came off the pill
Is it possible that I maybe pregnant?
It was a sunday we had intercourse I was due my period monday. I took pill monday and tuesday but took no more after that
I had a very light bleed monday only lasted about 2days.
Would sperm survive passed the two days?
Been having hot flushes and nausea with few days now..away during the night