Could I be pregnant?

Patient: I had sex for the first time in December. I think it could have been around the time i was ovulating but im not sure. He wore a condom but i dont think he finished. I started birth control a week later. i didnt get my period in december, and im on the inactive pills this week and i still do not have my period. could i be pregnant?

Symptoms: Fatigue, sore breasts, occassional mild cramps