I am a bit confused about this. My cycle is usually 28 days long and ny period last for 4 days. My last period was August 21st. I had sex on August 29th and took postinor 2 as suggested. It is now September 20th and My period is 2 days late but i am getting mild cramps as if its on its way. I dont think im pregnant bcuz i didnt have sex on my "risky days". Is there a possibility the the pill delayed my ovulation thats causing my period to be late? Or could i really be pregnant?