Discharge uncertainty

 Hey ladies, excuse the exposing photo if anyone is uncomfortable with this, so I’m not sure if this is a clueless question or not but I was wondering if anyone knows what this discharge means? I did have sexual intercourse a couple weekends ago and since then both my breasts have had slight aches, especially when I’m laying down. Also some on and off light-lower back pains, along with minor headaches? Not sure if they even relate to each other. But I’ve been working out lately too so could it be from that? I do keep hydrated.. haven’t taken a pregnancy test because I don’t think I am pregnant but even if I were to, would it be too early? Thanks girlies