Could I be pregnant?

Please don’t judge.... I obviously know what I did. I’m only 6 weeks and 3 days post pardom. I had unprotected sex 8 days ago and my husband forgot to pull out. Maybe he just said that because his pull out game is weak idk. But I took a test today and it was faint positive. Could this be from hcg still left in my system or could I test positive this early..?