Could I be pregnant?

Okay, so I've been having unprotected sex but I've always gotten my period for that month, well this month I'm pretty late, like I feel no period symptoms (I'm already 6 days. Almost a week late) so I took a clear blue pregnancy test, but it said I wasnt pregnant. I've skipped periods before but only 2x since I first got my period at 14 years old.

*yes having unprotected sex causes having babies and that there is a possibility I could be pregnant, I am very much aware of that

Is it cause I didnt wait that made the test come back negative?