Confused soul

Ok so here I am going crazy. I have always had irregular periods, but I think I know my body well enough to know that as much as it's irregular it's never been more than 7 days late. My last period was march 13, and here it is may 3, and I'm still waiting on my monthly to begin. I did 4 pregnancy test which all came out negative. I went to my gynecologist and she said maybe I'm experiencing a late cycle. I was sick and went to another doctor because I was sick and he said I should retest at the end of this week because I have some of the symptoms associated with pregnancy and maybe my hcg levels aren't elevated enough for a OTC pregnancy test to detect pregnancy. However this is where I'm so, so, so confused I do have all the symptoms of associated with my period except no bleeding and no sensitive breast. Also I've been having strange cravings and weird eating patterns. I find myself being more hungry than usual and tired more than usual. The crazy thing is, I don't know if it's my mind playing tricks on me because I know that missed periods is associated with being pregnant or if I'm actually pregnant.

HELP !!! Please, any insight will be greatly appreciated. I just can't deal with the disappointment if I'm not pregnant because I really wanna be. I got use to the possibility that I might be!