So my period ended on the 12th of January and I also had unprotected sex on the 12th as well. Today is the 16th and I noticed that for the past couple of days, I’ve been having a brown discharge. I didn’t notice it at first because I had dark panties on but then I finally realized that my discharge was not normal as I can see it when wiping. I don’t notice any foul smell or anything but the brown is freaking me out. Any advice on what this could be? How long will this last? Should I see a doctor? Please shed some light...Thanks for your help ladies!