Am I pregnant?

So I had unprotected sex with my boyfriend during my fertile week, and usually we use the pull out method, which usually works. He didn't cum in me but I'm not so sure about that anymore because for one, I have been spotting the week before my period is supposed to come. And that has never happened before. Usually my period just comes out of nowhere. Also the spotting has been very light, and started with light pinkish discharge and then brown. I haven't had any other symptoms. I'm just worried and would like to hear some opinions, thanks!