Pregnant or not pregnant

Hello, so I haven’t had a period since nov 30th that’s the last day of my last period. I have been having unprotected sex. I believe the last time we were in protected was jan 6/2020 I took a clear blue weeks indicator on Jan 18/2020. It said not pregnant. I still have t had any signs of my period coming. I do have symptoms of period and both pregnancy. I’m just curious could Percocet cause a negative pregnancy test or could I have just been too earlier. I’m gonna find out later today if I am or not lol.