Period suppose to be today…

Last month I got off birth control which started my period out of its normal cycle. I didn’t track ovulation, but we had sex frequently. My period was suppose to be due today and I’m not having any period signs (other than acne). I normally start in the mornings and NOTHING… but when I take a pregnancy test they are all negative. Maybe my body is just adjusting to a new period/getting back to normal since being on the pill (my periods are VERY on time and same day every month). Think there is still a chance of pregnancy?