please help if you can going crazy

Heather
So my af was due 6/22 and it still hasn't come not even sign she is going to show her head, I took so many hpt all negative from what I could see, so finally went to doctor and did pee test there as well negative, they sent me for HCG blood test but not the one that tells you the hcg number in your system the one that just tells you negative or positive. Of course mine came back negative as well but I feel pregnant and tomorrow af will be week late anyone experience anything like this and turn up pregnant after all that?!! I'm so confused and don't know what to think thanks ladies