Am I pregnant or not?

My boyfriend and I had unprotected sex on December 4th at 3am and on December 6th in the afternoon I took the Plan B pill. My period was supposed to come on December 13th and I started spotting the following day. It was a medium amount and it lasted for three days. My period is usually four days long and the amount of blood that comes out during my period is more than I was experiencing when I was spotting. This month I am currently two days late and now I have a yeast infection (which I haven’t had one in three years). I’m going to the gyno soon. I haven’t taken a pregnancy test yet. Does it sound like I’m pregnant? I have no pregnancy symptoms.