What Are The Side Effects Of Cerazette Pills?

hi, i have been on cerazette pills for the past 2 months, but i have been ill with diarrhea for about 2 days last week...i worry, as i have remember reading somewhere that having loose motions means you count the pill you took as missed...i had unprotected sex during the time i was ill, and after...what are the chances of pregnancy in this situation?