Can I be Pregnant?

Ok so I am about to get my period in two days, but I feel like I might be pregnant. I have really tender "heavy" feeling bbs and tired...have not felt this way before af the past three months and before that I was on the pill...I have been POAS'ing like crazy and keep coming up bfn. How good are my chances of still being pregnant....Wouldn't at least some hcg be in my system if my period is due so soon???? Thanks I'm quickly becoming a poas addict.... I ov on May 22nd making today 11 dpo...