Well, I had unprotected sex 2 weeks after my period. (Multiple times). Two days later I began to experience this intense pain on my left abdominal region and cramping as if I were in my period. Yesterday 4 days after our intercourse my nose has become very sensitive. And I keep experiencing hunger pains more then usual. And I have been nauseous since two days after I had the unprotected sex. What is going on inside of me?