Could I be pregnant?

Deiarra

Hi everyone I’m really new here and I had gotten my period on January 11 and I went to the doctors for chest pain on January 24 and they did blood work and I wasn’t pregnant my fiancé and I didn’t know that my ovulation day was the same day I went to the doctors we did the deed and that was my ovulation day now its three days later and my lower back is killing me and I’m cramping really bad need advice please help?