I'm late and freaking out

Nelly
I'm 4 days late, and my cycles usuaply very consistent. My cycles are usually 26-27 days apart. I had unprotected sex 2 days and the day before my period was suppose to start. Yes I know if I wasn't trying to get pregnant why not use protection, please save me the criticism. Is pregnany possible having sex 2 days before your predicted period?