Hi , so may 12th was the last time I had unprotected sex. This was also the last day of my period…

Hi , so may 12th was the last time I had unprotected sex. This was also the last day of my period which lasted around 3-4 days. The last week of May I also had some light spotting for a few days. I took a pregnancy test it was negative . It is now June 10th and I have not gotten my period. Could I be pregnant ?