Could I be pregnant ?

So I had sex on my period. I got my period Thursday and had sex Friday and got off my period around Tuesday. I got my period this Sunday but it was late . My period usually comes on Thursday's. That's when I was on birth control , but I think since I'm not on birth control anymore , my period is going to be a little irregular with days. But anyways , I took a pregnancy test and one said positive and one said negative, I took a test because I was curious. But I'm not sure. Could I be

Pregnant ?