Oh could I be oh could I be

In the month of November I bled lightly for two days on the 15-16, ( I stopped taking my birthcontrol trying to conceive) I was suppose to get my period the 17th according to my birthcontrol. I had unprotected sex at the end of November during my ovulation time. I’ve taken two tests and they are both negative. Could I be pregnant and it just be too soon?