I had unprotected sex 2 days after fertile days. 3 days later my lower abdomen felt like I did 100 sit ups and my body just felt achy. The next day I felt dizzy while sitting and the morning after that I had trapped wind on my side under my left boob near my rib cage.It hurt everytime I moved. The following morning I woke up with lower back pain that hurt everytime I inhaled. I never experienced any of these things before. My period is supposed to come in 4 days.Could it be new pms symptoms?