Hey you guys I got a quick stupid question

Silvia

I had unprotected sex on Sunday sept.7 and took a plan B, on the 9th...then we got distracted cause we were having fun that day when I took the plan b and we had unprotected that night, I don’t know much about it and we both think that it was okay to do that cause I took the plan b. I looked it up and it says there’s a chance I could be pregnant....could I be pregnant?