How Long Will The Side Effects Of NorLevo Last?

I took NorLevo last night 50 hrs after me and my boyfriend had the condom break. I read the side effects, but i have like an extreme cause of unsettling within my abdominal area, cramping yet sort of bubbling. as well as back spasms and a slight case of nausea. How long would side effects last for and is this also because i didnt take it immediately after?