Yesterday I had sex for the first time and this morning I woke up with yellowish discharge and my body was very sore, my partner was not a virgin and we used a condom but then took it off. Not knowing if he had pre cum , or not I am now running a fever and I have cold/ flu like symptoms. I wanted to know is this normal, is it a possibility that I can be pregnant , or if I m getting an STD or infection?