Am I pregnant?

An

My last period was on December 23rd, I had unprotected sex January 8th, but it was quick, and then he put the condom on (he never came) It is January 25th and I have had PMS cramps ever since January 16th, but I have not had my period just yet. I have taken 3 pregnancy test and they all come to negative. What else should I doo?