Pregnancy

Ladies I have a question,

I had sex a week after my period. Which was the 22-26 of November

I had unprotected sex maybe 4-6 days later

he may have precummed in me by a little.

I took a plan b the day after but I’m not sure if it’s going to work.

More info:

I’ve been spotting, I started spotting maybe 4 days after sex? at first it was a brown but now I see it’s more of a pink now. Also I might have been maybe 2 days from ovulating during that time, Is it possible I can be pregnant.

any help ?