I'm Worried. I Had Unprotected Sex And The Pull Out

I'm worried. I had unprotected sex and the pull out method was used but I was worried that something might've gone wrong so I took postinor 2 the day after. I had my period just a little before I took the pill, did that mess with anything?
After that my period pro longed and am guessing its withdrawal bleeding. Am now in the other month and my period is 2 days go in on to 3 days late and am beyond worried if am pregnant.